Archive
06/01/2023 – Ephemeris – Previewing June Skies
This is Bob Moler with Ephemeris for Thursday, June 1st. Today the Sun will be up for 15 hours and 20 minutes, setting at 9:21, and it will rise tomorrow at 5:59. The Moon, 2 days before full, will set at 4:43 tomorrow morning.
Let’s begin this program’s 49th trip around the Sun by previewing the skies of June. There will be a lot of Sun in June and very little night. The daylight hours will increase a bit from 15 hours and 20 minutes today to 15 hours and 34 minutes on the 21st, retreating back to 15 hours 31 minutes at month’s end. At this time of the year the sunset times for Ludington, Interlochen, Petoskey and Mackinaw City are very nearly the same. However, the sunrise times are at their most divergent. With Ludington’s sunrise being 14 minutes later than Mackinaw City’s. The altitude of the Sun above the southern horizon at local noon around 1:43 p.m. will hover around 68 to 69 degrees. Summer will start on the 21st at 10:58 a.m. Venus will look great in our skies and in telescopes this month.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT –4 hours). They may be different for your location.
Addendum
June Evening Star Chart

The planets and stars are plotted for the 15th at 11 p.m. EDT in the evening and 4 a.m. for the morning chart. These are the chart times. Note that Interlochen/Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 1 hour 45 minutes earlier than the current time.
Note, the chart times of 11 p.m. and 4 a.m. are for the 15th. For each week before the 15th, add ½ hour (28 minutes if you’re picky). For each week after the 15th, subtract ½ hour, or 28 minutes. The planet positions are updated each Wednesday on this blog. For planet positions on dates other than the 15th, check the Wednesday planet posts on this blog for weekly positions.
June Morning Star Chart

For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- Leaky dipper drips on Leo
- Follow the arc of the handle of the Big Dipper to the star Arcturus, and
- Extend like a spike to Spica,
Twilight Limits, Nautical and Astronomical
EDT | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2023-06-01 | 3h44m | 4h43m | 22h46m | 23h45m | – | – | 0.95 |
2023-06-02 | 3h43m | 4h42m | 22h48m | 23h47m | – | – | 0.99 |
2023-06-03 | 3h41m | 4h41m | 22h49m | 23h48m | – | – | 1.00 |
2023-06-04 | 3h40m | 4h40m | 22h50m | 23h50m | – | – | 0.98 |
2023-06-05 | 3h39m | 4h40m | 22h51m | 23h51m | – | – | 0.94 |
2023-06-06 | 3h38m | 4h39m | 22h52m | 23h53m | 23h53m | – | 0.87 |
2023-06-07 | 3h37m | 4h38m | 22h53m | 23h54m | 23h54m | 0h39m | 0.79 |
2023-06-08 | 3h36m | 4h38m | 22h53m | 23h55m | 23h55m | 1h18m | 0.68 |
2023-06-09 | 3h35m | 4h38m | 22h54m | 23h56m | 23h56m | 1h49m | 0.57 |
2023-06-10 | 3h35m | 4h37m | 22h55m | 23h58m | 23h58m | 2h13m | 0.46 |
2023-06-11 | 3h34m | 4h37m | 22h56m | 23h59m | 23h59m | 2h34m | 0.35 |
2023-06-12 | 3h33m | 4h36m | 22h57m | 0h00m | 0h00m | 2h54m | 0.25 |
2023-06-13 | 3h33m | 4h36m | 22h57m | 0h01m | 0h01m | 3h13m | 0.16 |
2023-06-14 | 3h32m | 4h36m | 22h58m | 0h01m | 0h01m | 3h32m | 0.09 |
2023-06-15 | 3h32m | 4h36m | 22h58m | 0h02m | 0h02m | 3h32m | 0.04 |
2023-06-16 | 3h32m | 4h36m | 22h59m | 0h03m | 0h03m | 3h32m | 0.01 |
2023-06-17 | 3h32m | 4h36m | 22h59m | 0h04m | 0h04m | 3h32m | 0.00 |
2023-06-18 | 3h32m | 4h36m | 23h00m | 0h04m | 0h04m | 3h32m | 0.01 |
2023-06-19 | 3h32m | 4h36m | 23h00m | 0h04m | 0h04m | 3h32m | 0.04 |
2023-06-20 | 3h32m | 4h36m | 23h00m | 0h05m | 0h05m | 3h32m | 0.08 |
2023-06-21 | 3h32m | 4h36m | 23h01m | 0h05m | 0h05m | 3h32m | 0.15 |
2023-06-22 | 3h32m | 4h37m | 23h01m | 0h05m | 0h28m | 3h32m | 0.22 |
2023-06-23 | 3h32m | 4h37m | 23h01m | 0h05m | 0h51m | 3h32m | 0.30 |
2023-06-24 | 3h33m | 4h37m | 23h01m | 0h05m | 1h11m | 3h33m | 0.39 |
2023-06-25 | 3h33m | 4h38m | 23h01m | 0h05m | 1h29m | 3h33m | 0.49 |
2023-06-26 | 3h34m | 4h38m | 23h01m | 0h05m | 1h46m | 3h34m | 0.59 |
2023-06-27 | 3h35m | 4h39m | 23h01m | 0h05m | 2h03m | 3h35m | 0.68 |
2023-06-28 | 3h35m | 4h39m | 23h01m | 0h04m | 2h22m | 3h35m | 0.78 |
2023-06-29 | 3h36m | 4h40m | 23h01m | 0h04m | 2h43m | 3h36m | 0.86 |
2023-06-30 | 3h37m | 4h40m | 23h00m | 0h03m | 3h10m | 3h37m | 0.93 |
The twilight calendar was generated using Cartes du Ciel (Sky Charts), with some corrections.
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
Date Time Event Jun 1 Th Venus: 45.4° E 1 Th 2:22 am Moon Descending Node 1 Th 11:30 pm Mars-Beehive: 0.1° S 3 Sa 5:19 pm Moon-Antares: 1.6° S 3 Sa 11:42 pm Full Strawberry Moon 4 Su 6:59 am Venus Elongation: 45.4° E 5 Mo 12:21 pm Moon South Dec.: 27.9° S 6 Tu 7:07 pm Moon Perigee: 364,900 km 9 Fr 4:19 pm Moon-Saturn: 3° N 10 Sa 3:31 pm Last Quarter 11 Su 1:50 pm Mercury-Pleiades: 6.2° S 13 Tu 7:05 am Venus-Beehive: 0.5° N 13 Tu 8:05 pm Moon Ascending Node 14 We 2:33 am Moon-Jupiter: 1.6° S 15 Th 8:47 pm Moon-Pleiades: 2° N 16 Fr 4:18 pm Mercury-Aldebaran: 4.3° N 18 Su 12:37 am New Moon 18 Su 5:07 pm Moon North Dec.: 27.8° N 20 Tu 5:10 am Moon-Pollux: 1.9° N 21 We 6:38 am Moon-Beehive: 4° S 21 We 10:58 am Summer Solstice 21 We 8:47 pm Moon-Venus: 4.1° S 22 Th 6:09 am Moon-Mars: 4.2° S 22 Th 2:31 pm Moon Apogee: 405,400 km 26 Mo 3:50 am First Quarter 28 We 8:22 am Moon Descending Node Jul 1 Sa Venus: 41.7° E
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.
Sun and Moon Rising and Setting Events
LU Ephemeris of Sky Events for Interlochen/TC June, 2023 Local time zone: EDT +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Thu 1| 06:00a 09:21p 15:20 | 10:44p 04:37a | Set 04:43a 94%| |Fri 2| 05:59a 09:22p 15:22 | 10:45p 04:36a | Set 05:14a 98%| |Sat 3| 05:59a 09:22p 15:23 | 10:46p 04:35a |Full Rise 09:27p 100%| +------+-----------------------+----------------+-----------------------+ |Sun 4| 05:59a 09:23p 15:24 | 10:47p 04:35a | Rise 10:42p 99%| |Mon 5| 05:58a 09:24p 15:25 | 10:48p 04:34a | Rise 11:47p 95%| |Tue 6| 05:58a 09:25p 15:26 | 10:49p 04:33a | Rise 12:39a 89%| |Wed 7| 05:57a 09:25p 15:27 | 10:50p 04:33a | Rise 01:18a 80%| |Thu 8| 05:57a 09:26p 15:28 | 10:51p 04:32a | Rise 01:48a 70%| |Fri 9| 05:57a 09:27p 15:29 | 10:52p 04:32a | Rise 02:13a 59%| |Sat 10| 05:57a 09:27p 15:30 | 10:53p 04:31a |L Qtr Rise 02:34a 48%| +------+-----------------------+----------------+-----------------------+ |Sun 11| 05:56a 09:28p 15:31 | 10:53p 04:31a | Rise 02:53a 37%| |Mon 12| 05:56a 09:28p 15:31 | 10:54p 04:31a | Rise 03:13a 27%| |Tue 13| 05:56a 09:29p 15:32 | 10:55p 04:30a | Rise 03:34a 18%| |Wed 14| 05:56a 09:29p 15:33 | 10:55p 04:30a | Rise 03:59a 10%| |Thu 15| 05:56a 09:30p 15:33 | 10:56p 04:30a | Rise 04:28a 5%| |Fri 16| 05:56a 09:30p 15:33 | 10:56p 04:30a | Rise 05:04a 2%| |Sat 17| 05:56a 09:30p 15:34 | 10:57p 04:30a | Rise 05:49a 0%| +------+-----------------------+----------------+-----------------------+ |Sun 18| 05:56a 09:31p 15:34 | 10:57p 04:30a |New Set 10:36p 1%| |Mon 19| 05:56a 09:31p 15:34 | 10:57p 04:30a | Set 11:22p 3%| |Tue 20| 05:56a 09:31p 15:34 | 10:58p 04:30a | Set 11:58p 8%| |Wed 21| 05:57a 09:32p 15:34 | 10:58p 04:30a | Set 12:27a 13%| |Thu 22| 05:57a 09:32p 15:34 | 10:58p 04:31a | Set 12:51a 20%| |Fri 23| 05:57a 09:32p 15:34 | 10:58p 04:31a | Set 01:11a 28%| |Sat 24| 05:57a 09:32p 15:34 | 10:58p 04:31a | Set 01:29a 37%| +------+-----------------------+----------------+-----------------------+ |Sun 25| 05:58a 09:32p 15:34 | 10:58p 04:32a | Set 01:45a 47%| |Mon 26| 05:58a 09:32p 15:33 | 10:58p 04:32a |F Qtr Set 02:02a 57%| |Tue 27| 05:59a 09:32p 15:33 | 10:58p 04:33a | Set 02:21a 66%| |Wed 28| 05:59a 09:32p 15:32 | 10:58p 04:33a | Set 02:43a 76%| |Thu 29| 05:59a 09:32p 15:32 | 10:58p 04:34a | Set 03:10a 84%| |Fri 30| 06:00a 09:32p 15:31 | 10:57p 04:34a | Set 03:45a 92%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Generated using my LookingUp for DOS program.
05/01/2023 – Ephemeris – Previewing May Skies
This is Ephemeris for Monday, the first of May. Today the Sun will be up for 14 hours and 14 minutes, setting at 8:47, and it will rise tomorrow at 6:31. The Moon, halfway from first quarter to full, will set at 5:20 tomorrow morning.
Let’s look ahead at the month of May, the month when the promise of spring is finally fulfilled. Daylight hours in the Interlochen/Traverse City area will increase from 14 hours and 14 minutes today to 15 hours 19 minutes on the 31st. The altitude, or angle, of the Sun above the southern horizon at local noon will ascend from 60 degrees today to 67 degrees at month’s end. The altitude of the Sun in the Straits area will be a degree lower than that. Local apparent noon this month, when the Sun passes due south, will be about 1:38 p.m. Early this month we’ll have The Eta Aquariid meteor shower early in the morning, though it will be hindered by a bright Moon. Venus and Mars are our evening planets. Venus will continue to approach Mars all month.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT –4 hours). They may be different for your location.
Addendum
May Evening Star Chart

Star Chart for May 2023 (11 p.m. EDT, May 15, 2023). Click or tap on image to enlarge it. Created using my LookingUp program.
The planets and stars are plotted for the 15th at 11 p.m. EDT in the evening and 4 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 1 hour 45 minutes earlier than the current time.
Note, the chart times of 11 p.m. and 4 a.m. are for the 15th. For each week before the 15th, add ½ hour (28 minutes if you’re picky). For each week after the 15th, subtract ½ hour or 28 minutes. The planet positions are updated each Wednesday on this blog. For planet positions on dates other than the 15th, check the Wednesday planet posts on this blog for weekly positions.
May Morning Star Chart

Star Chart for May mornings, 2023 (4 a.m. EDT, May 15, 2023). Click or tap on image to enlarge it. Created using my LookingUp program.
For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- Leaky dipper drips on Leo
- Follow the arc of the handle of the Big Dipper to the star Arcturus, and
- Extend like a spike to Spica,
- EaqR is the radiant of the Eta Aquariid meteor shower that peaks on the 5th.
Twilight Limits, Nautical and Astronomical
EDT | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2023-05-01 | 4h41m | 5h26m | 22h02m | 22h46m | – | – | 0.87 |
2023-05-02 | 4h39m | 5h24m | 22h03m | 22h48m | – | – | 0.93 |
2023-05-03 | 4h37m | 5h22m | 22h05m | 22h50m | – | – | 0.97 |
2023-05-04 | 4h35m | 5h20m | 22h06m | 22h52m | – | – | 1.00 |
2023-05-05 | 4h33m | 5h19m | 22h08m | 22h54m | – | – | 1.00 |
2023-05-06 | 4h31m | 5h17m | 22h10m | 22h56m | – | – | 0.97 |
2023-05-07 | 4h29m | 5h15m | 22h11m | 22h58m | 22h58m | 23h48m | 0.93 |
2023-05-08 | 4h27m | 5h14m | 22h13m | 23h00m | 23h00m | – | 0.85 |
2023-05-09 | 4h24m | 5h12m | 22h14m | 23h02m | 23h02m | 0h58m | 0.76 |
2023-05-10 | 4h22m | 5h10m | 22h16m | 23h04m | 23h04m | 1h56m | 0.66 |
2023-05-11 | 4h20m | 5h09m | 22h17m | 23h06m | 23h06m | 2h42m | 0.55 |
2023-05-12 | 4h18m | 5h07m | 22h19m | 23h08m | 23h08m | 3h17m | 0.43 |
2023-05-13 | 4h16m | 5h06m | 22h20m | 23h10m | 23h10m | 3h45m | 0.32 |
2023-05-14 | 4h14m | 5h04m | 22h22m | 23h12m | 23h12m | 4h08m | 0.22 |
2023-05-15 | 4h12m | 5h03m | 22h23m | 23h14m | 23h14m | 4h12m | 0.14 |
2023-05-16 | 4h10m | 5h01m | 22h25m | 23h16m | 23h16m | 4h10m | 0.07 |
2023-05-17 | 4h09m | 5h00m | 22h26m | 23h18m | 23h18m | 4h09m | 0.02 |
2023-05-18 | 4h07m | 4h58m | 22h28m | 23h20m | 23h20m | 4h07m | 0.00 |
2023-05-19 | 4h05m | 4h57m | 22h29m | 23h22m | 23h22m | 4h05m | 0.00 |
2023-05-20 | 4h03m | 4h56m | 22h31m | 23h23m | 23h23m | 4h03m | 0.03 |
2023-05-21 | 4h01m | 4h54m | 22h32m | 23h25m | 23h51m | 4h01m | 0.07 |
2023-05-22 | 3h59m | 4h53m | 22h34m | 23h27m | – | 3h59m | 0.12 |
2023-05-23 | 3h58m | 4h52m | 22h35m | 23h29m | 0h43m | 3h58m | 0.20 |
2023-05-24 | 3h56m | 4h51m | 22h36m | 23h31m | 1h26m | 3h56m | 0.28 |
2023-05-25 | 3h54m | 4h49m | 22h38m | 23h33m | 1h59m | 3h54m | 0.37 |
2023-05-26 | 3h53m | 4h48m | 22h39m | 23h35m | 2h26m | 3h53m | 0.46 |
2023-05-27 | 3h51m | 4h47m | 22h40m | 23h37m | 2h48m | 3h51m | 0.55 |
2023-05-28 | 3h49m | 4h46m | 22h42m | 23h38m | 3h07m | 3h49m | 0.65 |
2023-05-29 | 3h48m | 4h45m | 22h43m | 23h40m | 3h25m | 3h48m | 0.74 |
2023-05-30 | 3h47m | 4h44m | 22h44m | 23h42m | 3h42m | 3h47m | 0.82 |
2023-05-31 | 3h45m | 4h43m | 22h45m | 23h44m | – | – | 0.90 |
The twilight calendar was generated using Cartes du Ciel (Sky Charts), with some corrections.
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
LU Ephemeris of Sky Events for Interlochen/TC May 2023 Local time zone: EDT +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Mon 1| 06:33a 08:47p 14:14 | 09:59p 05:21a | Set 05:20a 86%| |Tue 2| 06:31a 08:48p 14:17 | 10:01p 05:19a | Set 05:37a 92%| |Wed 3| 06:30a 08:49p 14:19 | 10:02p 05:17a | Set 05:56a 97%| |Thu 4| 06:28a 08:51p 14:22 | 10:04p 05:15a | Set 06:18a 99%| |Fri 5| 06:27a 08:52p 14:25 | 10:06p 05:14a |Full Rise 09:13p 100%| |Sat 6| 06:25a 08:53p 14:27 | 10:07p 05:12a | Rise 10:31p 98%| +------+-----------------------+----------------+-----------------------+ |Sun 7| 06:24a 08:54p 14:30 | 10:09p 05:10a | Rise 11:47p 94%| |Mon 8| 06:23a 08:56p 14:32 | 10:10p 05:08a | Rise 12:57a 87%| |Tue 9| 06:22a 08:57p 14:35 | 10:12p 05:07a | Rise 01:56a 78%| |Wed 10| 06:20a 08:58p 14:37 | 10:13p 05:05a | Rise 02:42a 68%| |Thu 11| 06:19a 08:59p 14:40 | 10:15p 05:04a | Rise 03:17a 57%| |Fri 12| 06:18a 09:00p 14:42 | 10:16p 05:02a |L Qtr Rise 03:44a 45%| |Sat 13| 06:17a 09:01p 14:44 | 10:18p 05:00a | Rise 04:07a 34%| +------+-----------------------+----------------+-----------------------+ |Sun 14| 06:15a 09:03p 14:47 | 10:19p 04:59a | Rise 04:28a 24%| |Mon 15| 06:14a 09:04p 14:49 | 10:21p 04:57a | Rise 04:47a 15%| |Tue 16| 06:13a 09:05p 14:51 | 10:23p 04:56a | Rise 05:08a 8%| |Wed 17| 06:12a 09:06p 14:53 | 10:24p 04:54a | Rise 05:30a 3%| |Thu 18| 06:11a 09:07p 14:55 | 10:25p 04:53a | Rise 05:56a 1%| |Fri 19| 06:10a 09:08p 14:58 | 10:27p 04:52a |New Set 09:38p 0%| |Sat 20| 06:09a 09:09p 15:00 | 10:28p 04:50a | Set 10:48p 2%| +------+-----------------------+----------------+-----------------------+ |Sun 21| 06:08a 09:10p 15:02 | 10:30p 04:49a | Set 11:50p 6%| |Mon 22| 06:07a 09:11p 15:04 | 10:31p 04:48a | Set 12:43a 11%| |Tue 23| 06:06a 09:12p 15:05 | 10:33p 04:46a | Set 01:25a 18%| |Wed 24| 06:06a 09:13p 15:07 | 10:34p 04:45a | Set 01:59a 26%| |Thu 25| 06:05a 09:14p 15:09 | 10:35p 04:44a | Set 02:26a 35%| |Fri 26| 06:04a 09:15p 15:11 | 10:37p 04:43a | Set 02:48a 44%| |Sat 27| 06:03a 09:16p 15:13 | 10:38p 04:42a |F Qtr Set 03:07a 53%| +------+-----------------------+----------------+-----------------------+ |Sun 28| 06:02a 09:17p 15:14 | 10:39p 04:41a | Set 03:24a 63%| |Mon 29| 06:02a 09:18p 15:16 | 10:40p 04:40a | Set 03:41a 72%| |Tue 30| 06:01a 09:19p 15:17 | 10:42p 04:39a | Set 03:59a 81%| |Wed 31| 06:01a 09:20p 15:19 | 10:43p 04:38a | Set 04:19a 88%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunset and the next sunrise
01/31/2023 – Ephemeris – Previewing February skies
This is Ephemeris for Tuesday, January 31st. Today the Sun will be up for 9 hours and 46 minutes, setting at 5:49, and it will rise tomorrow at 8:02. The Moon, 3 days past first quarter, will set at 5:36 tomorrow morning.
February is the shortest month, even so, the daylight hours throughout the month will be getting longer. Daylight hours will expand from 9 hours and 49 minutes tomorrow the first, to 11 hours and 6 minutes on the 28th. The sunrise time will drop from 8:02 tomorrow to 7:22 at month’s end. The sunset times will extend from 5:51 tomorrow to 6:28 on the 28th. Along with that, the altitude of the Sun at local noon will increase from 28 degrees tomorrow to nearly 38 degrees at month’s end. Local noon, by the way, for Interlochen and Traverse City, when the Sun is due south, will be 12:57 p.m. at mid-month. Venus and Jupiter will appear to approach each other all month, in the western evening sky, coming into conjunction March 1st.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT –5 hours). They may be different for your location.
Addendum
February Evening Star Chart

Star Chart for February 2023, (9 p.m. EST February 15, 2023). Created using my LookingUp program. Click on image to enlarge.
The planets and stars are plotted for the 15th at 9 p.m. EST in the evening and 6 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere (rotating star finder) you may have to set it to 1 hour 45 minutes earlier than the current time.
Note the chart times of 9 p.m. and 6 a.m. are for the 15th. For each week before the 15th, add ½ hour (28 minutes if you’re picky). For each week after the 15th, subtract ½ hour. The planet positions are updated each Wednesday on this blog. For planet positions on dates other than the 15th, check the Wednesday planet posts on this blog.
February Morning Star Chart

Star Chart for February mornings, 2023 (6 a.m. EST February 15, 2023). No naked-eye planets are visible. Created using my LookingUp program. Click on image to enlarge.
For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- Follow the arc of the handle of the Big Dipper to the star Arcturus, and
- Extend like a spike to Spica,
- The Summer Triangle is in red.
Twilight Limits, Nautical and Astronomical
EST | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2023-02-01 | 6h22m | 6h57m | 18h56m | 19h30m | 5h37m | 6h22m | 0.89 |
2023-02-02 | 6h21m | 6h56m | 18h57m | 19h31m | – | – | 0.94 |
2023-02-03 | 6h20m | 6h54m | 18h58m | 19h32m | – | – | 0.98 |
2023-02-04 | 6h19m | 6h53m | 19h00m | 19h34m | – | – | 1.00 |
2023-02-05 | 6h18m | 6h52m | 19h01m | 19h35m | – | – | 1.00 |
2023-02-06 | 6h17m | 6h51m | 19h02m | 19h36m | – | – | 0.98 |
2023-02-07 | 6h16m | 6h50m | 19h03m | 19h37m | 19h37m | 19h58m | 0.95 |
2023-02-08 | 6h15m | 6h49m | 19h05m | 19h39m | 19h39m | 21h03m | 0.90 |
2023-02-09 | 6h14m | 6h48m | 19h06m | 19h40m | 19h40m | 22h08m | 0.83 |
2023-02-10 | 6h13m | 6h46m | 19h07m | 19h41m | 19h41m | 23h14m | 0.75 |
2023-02-11 | 6h11m | 6h45m | 19h09m | 19h42m | 19h42m | – | 0.65 |
2023-02-12 | 6h10m | 6h44m | 19h10m | 19h44m | 19h44m | 0h24m | 0.55 |
2023-02-13 | 6h09m | 6h42m | 19h11m | 19h45m | 19h45m | 1h36m | 0.44 |
2023-02-14 | 6h07m | 6h41m | 19h12m | 19h46m | 19h46m | 2h52m | 0.33 |
2023-02-15 | 6h06m | 6h40m | 19h14m | 19h47m | 19h47m | 4h07m | 0.23 |
2023-02-16 | 6h05m | 6h38m | 19h15m | 19h49m | 19h49m | 5h18m | 0.14 |
2023-02-17 | 6h03m | 6h37m | 19h16m | 19h50m | 19h50m | 6h03m | 0.06 |
2023-02-18 | 6h02m | 6h35m | 19h18m | 19h51m | 19h51m | 6h02m | 0.02 |
2023-02-19 | 6h00m | 6h34m | 19h19m | 19h53m | 19h53m | 6h00m | 0.00 |
2023-02-20 | 5h59m | 6h32m | 19h20m | 19h54m | 19h54m | 5h59m | 0.01 |
2023-02-21 | 5h57m | 6h31m | 19h21m | 19h55m | 20h16m | 5h57m | 0.05 |
2023-02-22 | 5h56m | 6h29m | 19h23m | 19h56m | 21h34m | 5h56m | 0.12 |
2023-02-23 | 5h54m | 6h28m | 19h24m | 19h58m | 22h49m | 5h54m | 0.20 |
2023-02-24 | 5h53m | 6h26m | 19h25m | 19h59m | – | 5h53m | 0.29 |
2023-02-25 | 5h51m | 6h25m | 19h27m | 20h00m | 0h03m | 5h51m | 0.39 |
2023-02-26 | 5h49m | 6h23m | 19h28m | 20h02m | 1h15m | 5h49m | 0.49 |
2023-02-27 | 5h48m | 6h21m | 19h29m | 20h03m | 2h25m | 5h48m | 0.59 |
2023-02-28 | 5h46m | 6h20m | 19h31m | 20h04m | 3h29m | 5h46m | 0.68 |
Twilight calendar was generated using Cartes du Ciel (Sky Charts).
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2019/09/27/
NASA Calendar of Planetary Events
Feb 1 We Venus: 24.4° E 2 Th 3:18 am Moon North Dec.: 27.5° N 3 Fr 2:47 pm Moon-Pollux: 2.1° N 4 Sa 3:55 am Moon Apogee: 406,500 km 4 Sa 4:32 pm Moon-Beehive: 3.9° S 5 Su 1:29 pm Full Snow Moon 12 Su 2:31 am Moon Descending Node 13 Mo 11:01 am Last Quarter 14 Tu 1:09 pm Moon-Antares: 1.9° S 16 Th 9:36 am Moon South Dec.: 27.6° S 16 Th 11:17 am Saturn Conjunction 19 Su 4:06 am Moon Perigee: 358,300 km 20 Mo 2:06 am New Moon 22 We 2:57 am Moon-Venus: 2.1° N 22 We 4:58 pm Moon-Jupiter: 1.2° N 24 Fr 1:56 pm Moon Ascending Node 26 Su 9:42 am Moon-Pleiades: 2.2° N 27 Mo 3:06 am First Quarter 27 Mo 11:32 pm Moon-Mars: 1.2° S Mar 1 We Venus: 30.6° E
All event times are given for UTC-5:00: Eastern Standard or Daylight Time
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html
If you go to the above site you can print out a list like the above for the entire year or calendar pages for your time zone.
Sun and Moon Rising and Setting Events
LU Ephemeris of Sky Events for Interlochen/TC February, 2023 Local time zone: EST +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Wed 1| 08:02a 05:51p 09:49 | 06:57p 06:55a | Set 06:31a 88%| |Thu 2| 08:00a 05:52p 09:51 | 06:58p 06:54a | Set 07:16a 93%| |Fri 3| 07:59a 05:54p 09:54 | 06:59p 06:53a | Set 07:54a 97%| |Sat 4| 07:58a 05:55p 09:56 | 07:01p 06:52a | Set 08:24a 99%| +------+-----------------------+----------------+-----------------------+ |Sun 5| 07:57a 05:56p 09:59 | 07:02p 06:51a |Full Rise 05:47p 100%| |Mon 6| 07:55a 05:58p 10:02 | 07:03p 06:50a | Rise 06:53p 98%| |Tue 7| 07:54a 05:59p 10:05 | 07:05p 06:49a | Rise 07:58p 95%| |Wed 8| 07:53a 06:01p 10:07 | 07:06p 06:48a | Rise 09:02p 91%| |Thu 9| 07:52a 06:02p 10:10 | 07:07p 06:47a | Rise 10:07p 84%| |Fri 10| 07:50a 06:04p 10:13 | 07:08p 06:45a | Rise 11:14p 76%| |Sat 11| 07:49a 06:05p 10:16 | 07:10p 06:44a | Rise 12:23a 67%| +------+-----------------------+----------------+-----------------------+ |Sun 12| 07:47a 06:06p 10:19 | 07:11p 06:43a | Rise 01:36a 57%| |Mon 13| 07:46a 06:08p 10:21 | 07:12p 06:41a |L Qtr Rise 02:51a 46%| |Tue 14| 07:44a 06:09p 10:24 | 07:14p 06:40a | Rise 04:07a 36%| |Wed 15| 07:43a 06:11p 10:27 | 07:15p 06:39a | Rise 05:18a 25%| |Thu 16| 07:41a 06:12p 10:30 | 07:16p 06:37a | Rise 06:19a 16%| |Fri 17| 07:40a 06:13p 10:33 | 07:17p 06:36a | Rise 07:07a 8%| |Sat 18| 07:38a 06:15p 10:36 | 07:19p 06:34a | Rise 07:44a 3%| +------+-----------------------+----------------+-----------------------+ |Sun 19| 07:37a 06:16p 10:39 | 07:20p 06:33a | Rise 08:13a 0%| |Mon 20| 07:35a 06:18p 10:42 | 07:21p 06:31a |New Set 06:54p 1%| |Tue 21| 07:34a 06:19p 10:45 | 07:23p 06:30a | Set 08:15p 4%| |Wed 22| 07:32a 06:20p 10:48 | 07:24p 06:28a | Set 09:33p 10%| |Thu 23| 07:30a 06:22p 10:51 | 07:25p 06:27a | Set 10:49p 18%| |Fri 24| 07:29a 06:23p 10:54 | 07:27p 06:25a | Set 12:02a 27%| |Sat 25| 07:27a 06:24p 10:57 | 07:28p 06:24a | Set 01:15a 37%| +------+-----------------------+----------------+-----------------------+ |Sun 26| 07:25a 06:26p 11:00 | 07:29p 06:22a | Set 02:24a 47%| |Mon 27| 07:24a 06:27p 11:03 | 07:30p 06:20a |F Qtr Set 03:29a 56%| |Tue 28| 07:22a 06:28p 11:06 | 07:32p 06:19a | Set 04:27a 66%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Created using my LookingUp for MS-DOS output as HTML.
01/03/2023 – Ephemeris – A belated preview of January skies
This is Ephemeris for Tuesday, January 3rd. The Sun will rise at 8:20. It’ll be up for 8 hours and 54 minutes, setting at 5:14. The Moon, 3 days before full, will set at 6:41 tomorrow morning.
I’m starting the January preview a bit late. We’re a day past the latest sunrise at about the same time as today, 8:20 a.m. and will back down to 8:03 by the 31st. Sunset times are currently increasing by a minute a day, from 5:14 p.m. today to 5:49 at month’s end. Listeners will have about the same sunrise time in Ludington, Interlochen/Traverse City, Petoskey and Mackinaw City, but the sunset times will vary markedly with the sunset times earlier in the north and later in the south. The Quadrantid meteor shower will reach peak this evening. It will have competition all night from the bright Moon. Tomorrow, the Earth will be its closest to the Sun for the entire year. This afternoon the Moon skated past Mars, so tonight the Red Planet will appear above and right of the Moon.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT –5 hours). They may be different for your location.
Addendum
January Evening Star Chart

Star Chart for January 2023 evenings, based on 9 pm EST, January 15, 2023. Click on image to enlarge. Created using my LookingUp program.
January Morning Star Chart

Star Chart for January 2023 mornings, based on 6 am EST, January 15, 2023. Click on image to enlarge. Created using my LookingUp program.
Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). For a list of constellation names to go with the abbreviations, click here.
The planets are also plotted for the 15th. For a check on the current whereabouts of the five naked eye planets, see the Wednesday post most weeks.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- The leaky bowl of the Big Dipper drips on Leo.
- Follow the arc of the handle of the Big Dipper to the star Arcturus, then
- Follow the spike to Spica.
- QuadR on the star charts is the radiant of the Quadrantid meteor shower, which peaks on the 3rd, but is best seen in the early morning hours of the 3rd or 4th.
Twilight Limits, Nautical and Astronomical
EST | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2023-01-01 | 6h35m | 7h11m | 18h22m | 18h57m | 3h19m | 6h35m | 0.80 |
2023-01-02 | 6h35m | 7h11m | 18h23m | 18h58m | 4h28m | 6h35m | 0.88 |
2023-01-03 | 6h35m | 7h11m | 18h24m | 18h59m | 5h36m | 6h35m | 0.93 |
2023-01-04 | 6h35m | 7h11m | 18h24m | 19h00m | – | – | 0.97 |
2023-01-05 | 6h35m | 7h11m | 18h25m | 19h01m | – | – | 0.99 |
2023-01-06 | 6h35m | 7h11m | 18h26m | 19h01m | – | – | 1.00 |
2023-01-07 | 6h35m | 7h11m | 18h27m | 19h02m | – | – | 0.99 |
2023-01-08 | 6h35m | 7h10m | 18h28m | 19h03m | – | – | 0.96 |
2023-01-09 | 6h35m | 7h10m | 18h29m | 19h04m | 19h04m | 19h56m | 0.91 |
2023-01-10 | 6h35m | 7h10m | 18h30m | 19h05m | 19h05m | 21h01m | 0.85 |
2023-01-11 | 6h35m | 7h10m | 18h31m | 19h06m | 19h06m | 22h06m | 0.77 |
2023-01-12 | 6h35m | 7h10m | 18h32m | 19h07m | 19h07m | 23h10m | 0.69 |
2023-01-13 | 6h34m | 7h09m | 18h33m | 19h08m | 19h08m | – | 0.59 |
2023-01-14 | 6h34m | 7h09m | 18h34m | 19h09m | 19h09m | 0h16m | 0.49 |
2023-01-15 | 6h34m | 7h09m | 18h35m | 19h10m | 19h10m | 1h24m | 0.38 |
2023-01-16 | 6h33m | 7h08m | 18h37m | 19h11m | 19h11m | 2h36m | 0.28 |
2023-01-17 | 6h33m | 7h08m | 18h38m | 19h13m | 19h13m | 3h52m | 0.18 |
2023-01-18 | 6h32m | 7h07m | 18h39m | 19h14m | 19h14m | 5h11m | 0.10 |
2023-01-19 | 6h32m | 7h07m | 18h40m | 19h15m | 19h15m | 6h29m | 0.04 |
2023-01-20 | 6h31m | 7h06m | 18h41m | 19h16m | 19h16m | 6h31m | 0.01 |
2023-01-21 | 6h31m | 7h05m | 18h42m | 19h17m | 19h17m | 6h31m | 0.00 |
2023-01-22 | 6h30m | 7h05m | 18h44m | 19h18m | 19h18m | 6h30m | 0.03 |
2023-01-23 | 6h30m | 7h04m | 18h45m | 19h19m | 20h05m | 6h30m | 0.08 |
2023-01-24 | 6h29m | 7h03m | 18h46m | 19h20m | 21h26m | 6h29m | 0.16 |
2023-01-25 | 6h28m | 7h03m | 18h47m | 19h22m | 22h43m | 6h28m | 0.25 |
2023-01-26 | 6h28m | 7h02m | 18h48m | 19h23m | 23h57m | 6h28m | 0.35 |
2023-01-27 | 6h27m | 7h01m | 18h50m | 19h24m | – | 6h27m | 0.46 |
2023-01-28 | 6h26m | 7h00m | 18h51m | 19h25m | 1h09m | 6h26m | 0.56 |
2023-01-29 | 6h25m | 6h59m | 18h52m | 19h26m | 2h19m | 6h25m | 0.66 |
2023-01-30 | 6h24m | 6h58m | 18h53m | 19h28m | 3h28m | 6h24m | 0.75 |
2023-01-31 | 6h23m | 6h58m | 18h55m | 19h29m | 4h35m | 6h23m | 0.82 |
Twilight calendar was generated using Cartes du Ciel (Sky Charts).
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
Date Time Event Jan 1 Su Venus: 17.3° E 1 Su 10:25 am Moon Ascending Node 2 Mo 8:24 pm Moon-Pleiades: 2.8° N 3 Tu 2:35 pm Moon-Mars: 0.6° N 3 Tu 10:06 pm Quadrantid shower: ZHR = 120 4 We 2:59 pm Perihelion: 0.9833 AU 5 Th 10:08 pm Moon North Dec.: 27.4° N 6 Fr 6:08 pm Full Wolf Moon 7 Sa 7:53 am Mercury Inferior Conj. 7 Sa 8:40 am Moon-Pollux: 2.1° N 8 Su 4:19 am Moon Apogee: 406,500 km 8 Su 10:23 am Moon-Beehive: 4° S 14 Sa 9:10 pm Last Quarter 16 Mo 1:32 am Moon Descending Node 18 We 4:32 am Moon-Antares: 2.1° S 20 Fr 12:06 am Moon South Dec.: 27.5° S 21 Sa 3:53 pm New Moon 21 Sa 3:58 pm Moon Perigee: 356,600 km 22 Su 4:53 pm Venus-Saturn: 0.3° N 23 Mo 2:22 am Moon-Saturn: 3.8° N 23 Mo 3:20 am Moon-Venus: 3.4° N 25 We 9:00 pm Moon-Jupiter: 1.8° N 28 Sa 10:19 am First Quarter 28 Sa 11:05 am Moon Ascending Node 30 Mo 12:59 am Mercury Elongation: 25° W 30 Mo 2:21 am Moon-Pleiades: 2.6° N 30 Mo 11:24 pm Moon-Mars: 0.1° N Feb 1 We Venus: 24.4° E
All event times are given for UTC-5 Eastern Standard Time.
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.
If you go to the above site you can print out a list like the above for the entire year or calendar pages for your time zone.
Sun and Moon Rising and Setting Events
LU Ephemeris of Sky Events for Interlochen/TC January, 2023 Local time zone: EST +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Sun 1| 08:20a 05:12p 08:52 | 06:23p 07:09a | Set 04:28a 79%| |Mon 2| 08:20a 05:13p 08:53 | 06:24p 07:09a | Set 05:36a 86%| |Tue 3| 08:20a 05:14p 08:54 | 06:24p 07:09a | Set 06:41a 92%| |Wed 4| 08:20a 05:15p 08:55 | 06:25p 07:10a | Set 07:41a 96%| |Thu 5| 08:19a 05:16p 08:56 | 06:26p 07:10a | Set 08:33a 99%| |Fri 6| 08:19a 05:17p 08:57 | 06:27p 07:09a |Full Rise 04:47p 100%| |Sat 7| 08:19a 05:18p 08:59 | 06:28p 07:09a | Rise 05:47p 99%| +------+-----------------------+----------------+-----------------------+ |Sun 8| 08:19a 05:19p 09:00 | 06:29p 07:09a | Rise 06:51p 96%| |Mon 9| 08:19a 05:21p 09:01 | 06:30p 07:09a | Rise 07:56p 92%| |Tue 10| 08:18a 05:22p 09:03 | 06:31p 07:09a | Rise 09:01p 86%| |Wed 11| 08:18a 05:23p 09:04 | 06:32p 07:09a | Rise 10:05p 79%| |Thu 12| 08:18a 05:24p 09:06 | 06:33p 07:08a | Rise 11:10p 70%| |Fri 13| 08:17a 05:25p 09:08 | 06:34p 07:08a | Rise 12:16a 61%| |Sat 14| 08:17a 05:26p 09:09 | 06:35p 07:08a |L Qtr Rise 01:24a 51%| +------+-----------------------+----------------+-----------------------+ |Sun 15| 08:16a 05:28p 09:11 | 06:36p 07:07a | Rise 02:36a 41%| |Mon 16| 08:16a 05:29p 09:13 | 06:38p 07:07a | Rise 03:52a 30%| |Tue 17| 08:15a 05:30p 09:15 | 06:39p 07:07a | Rise 05:11a 21%| |Wed 18| 08:14a 05:32p 09:17 | 06:40p 07:06a | Rise 06:28a 12%| |Thu 19| 08:14a 05:33p 09:19 | 06:41p 07:06a | Rise 07:38a 5%| |Fri 20| 08:13a 05:34p 09:21 | 06:42p 07:05a | Rise 08:34a 1%| |Sat 21| 08:12a 05:35p 09:23 | 06:43p 07:04a |New Set 05:13p 0%| +------+-----------------------+----------------+-----------------------+ |Sun 22| 08:11a 05:37p 09:25 | 06:45p 07:04a | Set 06:40p 2%| |Mon 23| 08:11a 05:38p 09:27 | 06:46p 07:03a | Set 08:05p 7%| |Tue 24| 08:10a 05:40p 09:29 | 06:47p 07:02a | Set 09:26p 14%| |Wed 25| 08:09a 05:41p 09:32 | 06:48p 07:02a | Set 10:42p 23%| |Thu 26| 08:08a 05:42p 09:34 | 06:49p 07:01a | Set 11:56p 33%| |Fri 27| 08:07a 05:44p 09:36 | 06:51p 07:00a | Set 01:08a 43%| |Sat 28| 08:06a 05:45p 09:39 | 06:52p 06:59a |F Qtr Set 02:18a 54%| +------+-----------------------+----------------+-----------------------+ |Sun 29| 08:05a 05:47p 09:41 | 06:53p 06:58a | Set 03:28a 64%| |Mon 30| 08:04a 05:48p 09:44 | 06:54p 06:57a | Set 04:34a 73%| |Tue 31| 08:03a 05:49p 09:46 | 06:56p 06:56a | Set 05:36a 81%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Generated using my LookingUp for DOS program.
12/01/2022 – Ephemeris – Let’s preview December skies
This is Ephemeris for Thursday, December 1st. Today the Sun will be up for 9 hours and 3 minutes, setting at 5:03, and it will rise tomorrow at 8:01. The Moon, 1 day past first quarter, will set at 1:57 tomorrow morning.
Let’s preview December’s skies. Winter will officially arrive on the 21st at 4:48 p.m., the winter solstice. The noontime Sun will dip from 23 ½ degrees to a bit less than 22 degrees above the southern horizon on that day. There will be little movement in the sunset times: In the Traverse City/Interlochen area this will be from 5:03 today, down to 5:02 and then advancing to 5:11 at the end of the month. The sunrise times will advance from 7:59 today to 8:20 on the 31st. The Moon will pass in front of Mars on the 7th, the night of the full moon and Mars opposition. The Geminid meteor shower whose maximum is on the morning of the 14th will have interference from the last quarter Moon.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT –5 hours). They may be different for your location.
Addendum
December Evening Star Chart

Star Chart for December 2022 (9 p.m. EST December 15, 2022). Click on image to enlarge. Created using my LookingUp program. Click on image to enlarge.
Credit my LookingUp program.
The planets and stars are plotted for the 15th at 9 pm EST in the evening and 6 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT).
December Morning Star Chart

Star Chart for December mornings, 2022 (6 a.m. EST December 15, 2022). Click on image to enlarge. Created using my LookingUp program.
For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- The leaky bowl of the Big Dipper drips on Leo.
- Follow the arc of the handle of the Big Dipper to the star Arcturus, then
- Follow the spike to Spica.
- The Summer Triangle is in red.
- GemR on the star charts is the radiant of the Geminid meteor shower, which peaks on the morning of the 14th.
Twilight Limits, Nautical and Astronomical
EST | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2022-12-01 | 6h20m | 6h56m | 18h16m | 18h51m | 0h44m | 6h20m | 0.67 |
2022-12-02 | 6h21m | 6h57m | 18h16m | 18h51m | 1h57m | 6h21m | 0.77 |
2022-12-03 | 6h22m | 6h57m | 18h16m | 18h51m | 3h08m | 6h22m | 0.85 |
2022-12-04 | 6h23m | 6h58m | 18h15m | 18h51m | 4h18m | 6h23m | 0.92 |
2022-12-05 | 6h24m | 6h59m | 18h15m | 18h50m | 5h27m | 6h24m | 0.96 |
2022-12-06 | 6h25m | 7h00m | 18h15m | 18h50m | – | – | 0.99 |
2022-12-07 | 6h26m | 7h01m | 18h15m | 18h50m | – | – | 1 |
2022-12-08 | 6h27m | 7h02m | 18h15m | 18h50m | – | – | 0.99 |
2022-12-09 | 6h28m | 7h03m | 18h15m | 18h51m | – | – | 0.96 |
2022-12-10 | 6h28m | 7h04m | 18h15m | 18h51m | 18h51m | 18h55m | 0.92 |
2022-12-11 | 6h29m | 7h05m | 18h15m | 18h51m | 18h51m | 19h56m | 0.86 |
2022-12-12 | 6h30m | 7h05m | 18h16m | 18h51m | 18h51m | 21h01m | 0.79 |
2022-12-13 | 6h31m | 7h06m | 18h16m | 18h51m | 18h51m | 22h06m | 0.71 |
2022-12-14 | 6h31m | 7h07m | 18h16m | 18h51m | 18h51m | 23h11m | 0.62 |
2022-12-15 | 6h32m | 7h07m | 18h16m | 18h52m | 18h52m | – | 0.52 |
2022-12-16 | 6h33m | 7h08m | 18h16m | 18h52m | 18h52m | 0h16m | 0.42 |
2022-12-17 | 6h33m | 7h09m | 18h17m | 18h52m | 18h52m | 1h22m | 0.32 |
2022-12-18 | 6h30m | 7h05m | 18h13m | 18h49m | 18h49m | 2h31m | 0.22 |
2022-12-19 | 6h31m | 7h06m | 18h14m | 18h49m | 18h49m | 3h43m | 0.14 |
2022-12-20 | 6h31m | 7h07m | 18h14m | 18h50m | 18h50m | 5h00m | 0.07 |
2022-12-21 | 6h32m | 7h07m | 18h15m | 18h50m | 18h50m | 6h20m | 0.02 |
2022-12-22 | 6h32m | 7h08m | 18h15m | 18h51m | 18h51m | 6h32m | 0 |
2022-12-23 | 6h33m | 7h08m | 18h16m | 18h51m | 18h51m | 6h33m | 0.01 |
2022-12-24 | 6h33m | 7h08m | 18h16m | 18h52m | 18h52m | 6h33m | 0.05 |
2022-12-25 | 6h33m | 7h09m | 18h17m | 18h52m | 19h48m | 6h33m | 0.11 |
2022-12-26 | 6h34m | 7h09m | 18h17m | 18h53m | 21h11m | 6h34m | 0.2 |
2022-12-27 | 6h34m | 7h10m | 18h18m | 18h54m | 22h31m | 6h34m | 0.3 |
2022-12-28 | 6h34m | 7h10m | 18h19m | 18h54m | 23h47m | 6h34m | 0.41 |
2022-12-29 | 6h35m | 7h10m | 18h20m | 18h55m | – | 6h35m | 0.52 |
2022-12-30 | 6h35m | 7h10m | 18h20m | 18h56m | 0h59m | 6h35m | 0.62 |
2022-12-31 | 6h35m | 7h10m | 18h21m | 18h56m | 2h10m | 6h35m | 0.72 |
Twilight calendar was generated using Cartes du Ciel (Sky Charts).
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
Date Time Event Dec 1 Th Venus: 9.9° E 1 Th 7:52 pm Moon-Jupiter: 2.6° N 5 Mo 7:38 am Moon Ascending Node 6 Tu 2:26 pm Moon-Pleiades: 2.9° N 7 We 11:08 pm Full Cold Moon 7 We 11:21 pm Moon-Mars: 0.6° S, Occultation! 7 We 11:24 pm Mars Opposition 9 Fr 4:22 pm Moon North Dec.: 27.4° N 11 Su 2:06 am Moon-Pollux: 2° N 11 Su 7:30 pm Moon Apogee: 405900 km 14 We 7:53 am Geminid Shower: ZHR = 120 16 Fr 3:56 am Last Quarter 19 Mo 8:36 pm Moon Descending Node 21 We 9:59 am Mercury Elongation: 20.1° E 21 We 4:48 pm Winter Solstice 21 We 5:43 pm Moon-Antares: 2.3° S 22 Th 4:00 pm Ursid Shower: ZHR = 10 23 Fr 5:17 am New Moon 23 Fr 1:18 pm Moon South Dec.: 27.4° S 24 Sa 3:32 am Moon Perigee: 358300 km 24 Sa 6:29 am Moon-Venus: 3.4° N 26 Mo 11:11 am Moon-Saturn: 4° N 29 Th 2:13 am Mercury-Venus: 1.4° N 29 Th 5:29 am Moon-Jupiter: 2.4° N 29 Th 8:20 pm First Quarter
All event times are given for UTC-5 Eastern Standard Time.
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.
If you go to the above site, you can print out a list like the above for the entire year or calendar pages for your time zone.
Sun and Moon Rising and Setting Events
LU Ephemeris of Sky Events for Interlochen/TC December, 2022 Local time zone: EST +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Thu 1| 07:59a 05:03p 09:03 | 06:12p 06:50a | Set 01:57a 65%| |Fri 2| 08:01a 05:03p 09:02 | 06:12p 06:51a | Set 03:07a 75%| |Sat 3| 08:02a 05:02p 09:00 | 06:12p 06:52a | Set 04:17a 83%| +------+-----------------------+----------------+-----------------------+ |Sun 4| 08:03a 05:02p 08:59 | 06:12p 06:53a | Set 05:27a 90%| |Mon 5| 08:04a 05:02p 08:58 | 06:12p 06:54a | Set 06:36a 95%| |Tue 6| 08:05a 05:02p 08:57 | 06:12p 06:55a | Set 07:45a 99%| |Wed 7| 08:06a 05:02p 08:55 | 06:12p 06:56a |Full Rise 04:31p 100%| |Thu 8| 08:07a 05:02p 08:54 | 06:12p 06:57a | Rise 05:10p 99%| |Fri 9| 08:08a 05:02p 08:53 | 06:12p 06:58a | Rise 05:59p 97%| |Sat 10| 08:09a 05:02p 08:52 | 06:12p 06:58a | Rise 06:54p 93%| +------+-----------------------+----------------+-----------------------+ |Sun 11| 08:10a 05:02p 08:52 | 06:12p 06:59a | Rise 07:56p 87%| |Mon 12| 08:10a 05:02p 08:51 | 06:12p 07:00a | Rise 09:00p 80%| |Tue 13| 08:11a 05:02p 08:50 | 06:12p 07:01a | Rise 10:05p 72%| |Wed 14| 08:12a 05:02p 08:50 | 06:13p 07:01a | Rise 11:10p 63%| |Thu 15| 08:13a 05:02p 08:49 | 06:13p 07:02a | Rise 12:16a 54%| |Fri 16| 08:13a 05:03p 08:49 | 06:13p 07:03a |L Qtr Rise 01:22a 44%| |Sat 17| 08:14a 05:03p 08:48 | 06:14p 07:03a | Rise 02:31a 34%| +------+-----------------------+----------------+-----------------------+ |Sun 18| 08:15a 05:03p 08:48 | 06:14p 07:04a | Rise 03:43a 24%| |Mon 19| 08:15a 05:04p 08:48 | 06:14p 07:05a | Rise 04:59a 16%| |Tue 20| 08:16a 05:04p 08:48 | 06:15p 07:05a | Rise 06:20a 8%| |Wed 21| 08:16a 05:05p 08:48 | 06:15p 07:06a | Rise 07:41a 3%| |Thu 22| 08:17a 05:05p 08:48 | 06:16p 07:06a | Rise 08:56a 0%| |Fri 23| 08:17a 05:06p 08:48 | 06:16p 07:07a |New Set 05:08p 1%| |Sat 24| 08:18a 05:06p 08:48 | 06:17p 07:07a | Set 06:24p 4%| +------+-----------------------+----------------+-----------------------+ |Sun 25| 08:18a 05:07p 08:48 | 06:18p 07:08a | Set 07:47p 10%| |Mon 26| 08:19a 05:08p 08:49 | 06:18p 07:08a | Set 09:10p 18%| |Tue 27| 08:19a 05:08p 08:49 | 06:19p 07:08a | Set 10:30p 28%| |Wed 28| 08:19a 05:09p 08:49 | 06:20p 07:09a | Set 11:46p 39%| |Thu 29| 08:19a 05:10p 08:50 | 06:20p 07:09a |F Qtr Set 12:59a 49%| |Fri 30| 08:19a 05:11p 08:51 | 06:21p 07:09a | Set 02:09a 60%| |Sat 31| 08:20a 05:11p 08:51 | 06:22p 07:09a | Set 03:19a 70%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Generated using my LookingUp for DOS program.
Mars occultation by the Moon, the night of December 7/8, 2022
11/01/2022 – Ephemeris – Previewing November skies
This is Bob Moler with Ephemeris for Tuesday, November 1st. The Sun will rise at 8:20. It’ll be up for 10 hours and 10 minutes, setting at 6:31. The Moon, at first quarter today, will set at 1:21 tomorrow morning.
Let’s look ahead at the skies for the month of November. The Sun is still moving south rapidly. Daylight hours in the Interlochen/Traverse City area and will drop from 10 hours and 10 minutes today to 9 hours 5 minutes on the 30th. The altitude, or angle, of the Sun above the southern horizon at local noon will be at 30 degrees today and will descend to 23 and a half degrees on the 30th. The altitude of the Sun in the Straits area will be a degree lower. Local noon, this month, will be about 12:30 p.m. once we’re on standard time beginning on the 6th. There will be a total eclipse of the Moon on the morning of the 8th, Election Day. The eclipse will start shortly after 4 am and be visible until it sets during the last stages of the eclipse just after sunrise, around 7:40 am. I’ll have more information on it next Monday.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.
Addendum
November Evening Star Chart

The planets and stars are plotted for the 15th at 9 p.m. EST in the evening and 6 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 45 minutes earlier than the current time.

For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- Follow the arc of the handle of the Big Dipper to the star Arcturus
- The Summer Triangle is in red.
- TauR on the evening star chart can be used as the radiant for the North and South Taurid meteor showers.
- LeoR on the morning star chart is the radiant of the Leonid meteor shower, which peaks between the 17th.
Twilight Limits, Nautical and Astronomical
EDT/EST | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2022-11-01 | 6h47m | 7h21m | 19h40m | 20h13m | 0h03m | 6h47m | 0.61 |
2022-11-02 | 6h48m | 7h22m | 19h38m | 20h12m | 1h21m | 6h48m | 0.71 |
2022-11-03 | 6h49m | 7h23m | 19h37m | 20h11m | 2h39m | 6h49m | 0.81 |
2022-11-04 | 6h51m | 7h25m | 19h36m | 20h10m | 3h54m | 6h51m | 0.89 |
2022-11-05 | 6h52m | 7h26m | 19h35m | 20h09m | 5h07m | 6h52m | 0.94 |
2022-11-06 | 5h53m | 6h27m | 18h34m | 19h08m | 5h18m | 5h53m | 0.98 |
2022-11-07 | 5h54m | 6h28m | 18h32m | 19h06m | – | – | 1 |
2022-11-08 | 5h55m | 6h29m | 18h31m | 19h05m | – | – | 0.99 |
2022-11-09 | 5h57m | 6h31m | 18h30m | 19h04m | – | – | 0.97 |
2022-11-10 | 5h58m | 6h32m | 18h29m | 19h03m | – | – | 0.93 |
2022-11-11 | 5h59m | 6h33m | 18h28m | 19h03m | 19h03m | 19h16m | 0.87 |
2022-11-12 | 6h00m | 6h34m | 18h27m | 19h02m | 19h02m | 20h07m | 0.8 |
2022-11-13 | 6h01m | 6h35m | 18h26m | 19h01m | 19h01m | 21h05m | 0.72 |
2022-11-14 | 6h02m | 6h37m | 18h26m | 19h00m | 19h00m | 22h08m | 0.63 |
2022-11-15 | 6h03m | 6h38m | 18h25m | 18h59m | 18h59m | 23h13m | 0.54 |
2022-11-16 | 6h05m | 6h39m | 18h24m | 18h58m | 18h58m | – | 0.44 |
2022-11-17 | 6h06m | 6h40m | 18h23m | 18h58m | 18h58m | 0h19m | 0.34 |
2022-11-18 | 6h07m | 6h41m | 18h22m | 18h57m | 18h57m | 1h26m | 0.25 |
2022-11-19 | 6h08m | 6h43m | 18h22m | 18h56m | 18h56m | 2h33m | 0.17 |
2022-11-20 | 6h09m | 6h44m | 18h21m | 18h56m | 18h56m | 3h42m | 0.1 |
2022-11-21 | 6h10m | 6h45m | 18h20m | 18h55m | 18h55m | 4h54m | 0.04 |
2022-11-22 | 6h11m | 6h46m | 18h20m | 18h54m | 18h54m | 6h10m | 0.01 |
2022-11-23 | 6h12m | 6h47m | 18h19m | 18h54m | 18h54m | 6h12m | 0 |
2022-11-24 | 6h13m | 6h48m | 18h19m | 18h53m | 18h53m | 6h13m | 0.02 |
2022-11-25 | 6h14m | 6h49m | 18h18m | 18h53m | 18h53m | 6h14m | 0.07 |
2022-11-26 | 6h15m | 6h50m | 18h18m | 18h53m | 19h32m | 6h15m | 0.14 |
2022-11-27 | 6h16m | 6h51m | 18h17m | 18h52m | 20h49m | 6h16m | 0.24 |
2022-11-28 | 6h17m | 6h52m | 18h17m | 18h52m | 22h09m | 6h17m | 0.34 |
2022-11-29 | 6h18m | 6h53m | 18h17m | 18h52m | 23h29m | 6h18m | 0.45 |
2022-11-30 | 6h19m | 6h55m | 18h16m | 18h51m | – | 6h19m | 0.57 |
Twilight calendar was generated using Cartes du Ciel (Sky Charts).
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
Nov 1 Tu Venus: 2.6° E 1 Tu 1:37 am First Quarter 1 Tu 4:08 pm Moon-Saturn: 4.3° N 4 Fr 3:19 pm Moon-Jupiter: 2.5° N 8 Tu 1:08 am Moon Ascending Node 8 Tu 5:59 am Total Lunar Eclipse 8 Tu 6:02 am Full Beaver Moon 8 Tu 11:28 am Mercury Superior Conj. 9 We 3:41 am Uranus Opposition 9 We 7:16 am Moon-Pleiades: 2.9° N 11 Fr 8:43 am Moon-Mars: 2.7° S 12 Sa 9:17 am Moon North Dec.: 27.5° N 12 Sa 12:25 pm North Taurid Shower: ZHR = 15 13 Su 6:43 pm Moon-Pollux: 1.9° N 14 Mo 1:41 am Moon Apogee: 404900 km 16 We 8:27 am Last Quarter 17 Th 6:42 pm Leonid Shower: ZHR = 15 22 Tu 11:23 am Moon Descending Node 23 We 5:57 pm New Moon 25 Fr 8:30 pm Moon Perigee: 362800 km 26 Sa 3:28 am Moon South Dec.: 27.5° S 28 Mo 11:40 pm Moon-Saturn: 4.2° N 30 We 9:36 am First Quarter Dec 1 Th Venus: 9.9° E
All event times for November 1-5 are given for UTC-4 Eastern Daylight Saving Time. For dates after that, times are given for UTC-5 Eastern Standard Time.
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.
If you go to the above site, you can print out a list like the above for the entire year or calendar pages for your time zone.
Sun and Moon Rising and Setting Times
LU Ephemeris of Sky Events for Interlochen/TC November, 2022 Local time zone: EDT +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Tue 1| 08:20a 06:31p 10:10 | 07:36p 07:15a |F Qtr Set 01:21a 58%| |Wed 2| 08:22a 06:29p 10:07 | 07:35p 07:17a | Set 02:38a 69%| |Thu 3| 08:23a 06:28p 10:05 | 07:33p 07:18a | Set 03:53a 79%| |Fri 4| 08:24a 06:27p 10:02 | 07:32p 07:19a | Set 05:06a 87%| |Sat 5| 08:26a 06:26p 09:59 | 07:31p 07:20a | Set 06:18a 93%| +------+-----------------------+----------------+-----------------------+ | EST | Time Change | | | |Sun 6| 07:27a 05:24p 09:57 | 06:30p 06:21a | Set 06:29a 98%| |Mon 7| 07:29a 05:23p 09:54 | 06:29p 06:23a | Set 07:40a 100%| |Tue 8| 07:30a 05:22p 09:51 | 06:28p 06:24a |Full Rise 05:28p 100%| |Wed 9| 07:31a 05:21p 09:49 | 06:27p 06:25a | Rise 05:57p 98%| |Thu 10| 07:33a 05:19p 09:46 | 06:26p 06:26a | Rise 06:32p 94%| |Fri 11| 07:34a 05:18p 09:44 | 06:25p 06:28a | Rise 07:15p 88%| |Sat 12| 07:35a 05:17p 09:41 | 06:24p 06:29a | Rise 08:06p 81%| +------+-----------------------+----------------+-----------------------+ |Sun 13| 07:37a 05:16p 09:39 | 06:23p 06:30a | Rise 09:05p 73%| |Mon 14| 07:38a 05:15p 09:37 | 06:22p 06:31a | Rise 10:07p 65%| |Tue 15| 07:39a 05:14p 09:34 | 06:21p 06:32a | Rise 11:13p 55%| |Wed 16| 07:41a 05:13p 09:32 | 06:20p 06:33a |L Qtr Rise 12:19a 46%| |Thu 17| 07:42a 05:12p 09:30 | 06:20p 06:35a | Rise 01:25a 36%| |Fri 18| 07:43a 05:11p 09:27 | 06:19p 06:36a | Rise 02:32a 27%| |Sat 19| 07:45a 05:10p 09:25 | 06:18p 06:37a | Rise 03:42a 18%| +------+-----------------------+----------------+-----------------------+ |Sun 20| 07:46a 05:10p 09:23 | 06:17p 06:38a | Rise 04:54a 11%| |Mon 21| 07:47a 05:09p 09:21 | 06:17p 06:39a | Rise 06:10a 5%| |Tue 22| 07:49a 05:08p 09:19 | 06:16p 06:40a | Rise 07:30a 1%| |Wed 23| 07:50a 05:07p 09:17 | 06:16p 06:42a |New Set 04:50p 0%| |Thu 24| 07:51a 05:07p 09:15 | 06:15p 06:43a | Set 05:31p 2%| |Fri 25| 07:52a 05:06p 09:13 | 06:15p 06:44a | Set 06:24p 6%| |Sat 26| 07:54a 05:05p 09:11 | 06:14p 06:45a | Set 07:31p 13%| +------+-----------------------+----------------+-----------------------+ |Sun 27| 07:55a 05:05p 09:10 | 06:14p 06:46a | Set 08:48p 22%| |Mon 28| 07:56a 05:04p 09:08 | 06:13p 06:47a | Set 10:09p 32%| |Tue 29| 07:57a 05:04p 09:06 | 06:13p 06:48a | Set 11:28p 43%| |Wed 30| 07:58a 05:04p 09:05 | 06:13p 06:49a |F Qtr Set 12:44a 54%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Generated using my LookingUp for DOS program.
09/29/2022 – Ephemeris – Previewing October skies
This is Ephemeris for Thursday, September 29th. Today the Sun will be up for 11 hours and 48 minutes, setting at 7:26, and it will rise tomorrow at 7:39. The Moon, 3 days before first quarter, will set at 9:20 this evening.
Let’s take an early look at the skies for the month of October. Tomorrow I’ll talk about local observing events for Saturday, both afternoon and evening. Back to October. The Sun will still be moving south rapidly. Daylight hours in the Interlochen/Traverse City area and will drop from 11 hours and 42 minutes on Saturday the 1st to 10 hours, 13 minutes at month’s end. The altitude of the Sun above the southern horizon at local noon will be 42 degrees Saturday in the Interlochen area, and will descend to 31 degrees on Halloween. For the Straits of Mackinac area, the Sun will be a degree lower, and the daytime hours will be a bit shorter. The Orionid meteor shower, bits of Halley’s Comet, won’t be bothered by the bright Moon until the early morning on the 21st.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.
Addendum
October Evening Star Chart

Star Chart for October 2022 (9 p.m. EDT, October 15, 2022). Click on image to enlarge it. Created using my LookingUp app.
The planets and stars are plotted for the 15th at 9 p.m. EDT in the evening and 6 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 1 hour 45 minutes earlier than the current time.
October Morning Star Chart
For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- Leaky dipper drips on Leo.
- Follow the arc of the handle of the Big Dipper to the star Arcturus.
- The Summer Triangle is in red.
- DracR – Draconid Radiant – Peaks the 8th – Zenithal Hourly Rate < 10 with rare outbursts of a thousand an hour. It’s hindered this year by the full moon.
- OriR – Orionid Radiant – Peak 21st – Zenithal Hourly Rate = 20
Twilight Limits, Nautical and Astronomical
EDT | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2022-10-01 | 6h09m | 6h43m | 20h29m | 21h04m | 22h45m | 6h09m | 0.41 |
2022-10-02 | 6h10m | 6h44m | 20h28m | 21h02m | 23h45m | 6h10m | 0.53 |
2022-10-03 | 6h11m | 6h46m | 20h26m | 21h00m | – | 6h11m | 0.64 |
2022-10-04 | 6h13m | 6h47m | 20h24m | 20h58m | 0h56m | 6h13m | 0.75 |
2022-10-05 | 6h14m | 6h48m | 20h22m | 20h56m | 2h14m | 6h14m | 0.84 |
2022-10-06 | 6h15m | 6h49m | 20h20m | 20h54m | 3h34m | 6h15m | 0.91 |
2022-10-07 | 6h16m | 6h50m | 20h18m | 20h52m | 4h52m | 6h16m | 0.97 |
2022-10-08 | 6h18m | 6h52m | 20h17m | 20h51m | 6h08m | 6h18m | 0.99 |
2022-10-09 | 6h19m | 6h53m | 20h15m | 20h49m | – | – | 1 |
2022-10-10 | 6h20m | 6h54m | 20h13m | 20h47m | – | – | 0.98 |
2022-10-11 | 6h22m | 6h55m | 20h11m | 20h45m | – | – | 0.94 |
2022-10-12 | 6h23m | 6h57m | 20h10m | 20h43m | – | – | 0.88 |
2022-10-13 | 6h24m | 6h58m | 20h08m | 20h42m | 20h42m | 21h00m | 0.81 |
2022-10-14 | 6h25m | 6h59m | 20h06m | 20h40m | 20h40m | 21h38m | 0.73 |
2022-10-15 | 6h26m | 7h00m | 20h05m | 20h38m | 20h38m | 22h24m | 0.64 |
2022-10-16 | 6h28m | 7h01m | 20h03m | 20h37m | 20h37m | 23h18m | 0.55 |
2022-10-17 | 6h29m | 7h03m | 20h01m | 20h35m | 20h35m | – | 0.45 |
2022-10-18 | 6h30m | 7h04m | 20h00m | 20h33m | 20h33m | 0h18m | 0.36 |
2022-10-19 | 6h31m | 7h05m | 19h58m | 20h32m | 20h32m | 1h23m | 0.27 |
2022-10-20 | 6h33m | 7h06m | 19h57m | 20h30m | 20h30m | 2h29m | 0.19 |
2022-10-21 | 6h34m | 7h08m | 19h55m | 20h29m | 20h29m | 3h37m | 0.12 |
2022-10-22 | 6h35m | 7h09m | 19h53m | 20h27m | 20h27m | 4h45m | 0.06 |
2022-10-23 | 6h36m | 7h10m | 19h52m | 20h26m | 20h26m | 5h54m | 0.02 |
2022-10-24 | 6h37m | 7h11m | 19h50m | 20h24m | 20h24m | 6h37m | 0 |
2022-10-25 | 6h39m | 7h12m | 19h49m | 20h23m | 20h23m | 6h39m | 0.01 |
2022-10-26 | 6h40m | 7h14m | 19h48m | 20h21m | 20h21m | 6h40m | 0.04 |
2022-10-27 | 6h41m | 7h15m | 19h46m | 20h20m | 20h20m | 6h41m | 0.1 |
2022-10-28 | 6h42m | 7h16m | 19h45m | 20h19m | 20h40m | 6h42m | 0.17 |
2022-10-29 | 6h44m | 7h17m | 19h43m | 20h17m | 21h37m | 6h44m | 0.27 |
2022-10-30 | 6h45m | 7h19m | 19h42m | 20h16m | 22h46m | 6h45m | 0.38 |
2022-10-31 | 6h46m | 7h20m | 19h41m | 20h15m | – | 6h46m | 0.49 |
Twilight calendar was generated using Cartes du Ciel (Sky Charts).
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
Oct 1 Sa Venus: 5.8° W 2 Su 3:32 pm Moon South Dec.: 27.4° S 2 Su 8:14 pm First Quarter 4 Tu 1:01 pm Moon Perigee: 369,300 km 5 We 11:51 am Moon-Saturn: 4.1° N 8 Sa 2:06 pm Moon-Jupiter: 2.1° N 8 Sa 4:59 pm Mercury Elongation: 18° W (Morning elongation) 9 Su 4:55 pm Full Hunter's Moon 11 Tu 5:49 pm Moon Ascending Node 12 We 11:46 pm Moon-Pleiades: 2.9° N 15 Sa 12:28 am Moon-Mars: 4° S 16 Su 2:12 am Moon North Dec.: 27.5° N 17 Mo 6:21 am Moon Apogee: 404300 km 17 Mo 11:41 am Moon-Pollux: 2° N 17 Mo 1:15 pm Last Quarter 21 Fr 1:39 pm Orionid Shower: ZHR = 20 22 Sa 4:47 pm Venus Superior Conjunction. Enters evening sky 25 Tu 6:49 am New Moon 25 Tu 7:00 am Partial Solar Eclipse (Parts of Europe, Africa and Asia) 26 We 2:30 am Moon Descending Node 27 Th 10:48 pm Moon-Antares: 2.3° S 29 Sa 10:48 am Moon Perigee: 368300 km 29 Sa 9:04 pm Moon South Dec.: 27.5° S Nov 1 Tu Venus: 2.6° E
All event times are given for UTC-4 hr: Eastern Daylight Saving Time.
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.
If you go to the above site, you can print out a list like the above for the entire year or calendar pages for your time zone.
Sun and Moon Rising and Setting Events
LU Ephemeris of Sky Events for Interlochen/TC October 2022 Local time zone: EDT +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Sat 1| 07:40a 07:23p 11:42 | 08:26p 06:37a | Set 10:44p 39%| +------+-----------------------+----------------+-----------------------+ |Sun 2| 07:42a 07:21p 11:39 | 08:24p 06:39a |F Qtr Set 11:44p 50%| |Mon 3| 07:43a 07:19p 11:36 | 08:22p 06:40a | Set 12:55a 61%| |Tue 4| 07:44a 07:17p 11:33 | 08:20p 06:41a | Set 02:14a 72%| |Wed 5| 07:45a 07:15p 11:30 | 08:18p 06:42a | Set 03:33a 82%| |Thu 6| 07:46a 07:14p 11:27 | 08:16p 06:43a | Set 04:52a 90%| |Fri 7| 07:48a 07:12p 11:24 | 08:15p 06:45a | Set 06:08a 96%| |Sat 8| 07:49a 07:10p 11:20 | 08:13p 06:46a | Set 07:22a 99%| +------+-----------------------+----------------+-----------------------+ |Sun 9| 07:50a 07:08p 11:17 | 08:11p 06:47a |Full Rise 07:19p 100%| |Mon 10| 07:51a 07:06p 11:14 | 08:09p 06:48a | Rise 07:39p 99%| |Tue 11| 07:53a 07:05p 11:11 | 08:08p 06:50a | Rise 08:02p 95%| |Wed 12| 07:54a 07:03p 11:08 | 08:06p 06:51a | Rise 08:28p 90%| |Thu 13| 07:55a 07:01p 11:05 | 08:04p 06:52a | Rise 08:59p 83%| |Fri 14| 07:57a 06:59p 11:02 | 08:02p 06:53a | Rise 09:37p 75%| |Sat 15| 07:58a 06:58p 10:59 | 08:01p 06:54a | Rise 10:23p 66%| +------+-----------------------+----------------+-----------------------+ |Sun 16| 07:59a 06:56p 10:56 | 07:59p 06:56a | Rise 11:17p 57%| |Mon 17| 08:00a 06:54p 10:53 | 07:58p 06:57a |L Qtr Rise 12:18a 47%| |Tue 18| 08:02a 06:52p 10:50 | 07:56p 06:58a | Rise 01:22a 38%| |Wed 19| 08:03a 06:51p 10:47 | 07:54p 06:59a | Rise 02:29a 29%| |Thu 20| 08:04a 06:49p 10:44 | 07:53p 07:01a | Rise 03:36a 20%| |Fri 21| 08:06a 06:48p 10:41 | 07:51p 07:02a | Rise 04:44a 13%| |Sat 22| 08:07a 06:46p 10:38 | 07:50p 07:03a | Rise 05:53a 7%| +------+-----------------------+----------------+-----------------------+ |Sun 23| 08:08a 06:44p 10:36 | 07:48p 07:04a | Rise 07:04a 3%| |Mon 24| 08:10a 06:43p 10:33 | 07:47p 07:06a | Rise 08:18a 0%| |Tue 25| 08:11a 06:41p 10:30 | 07:45p 07:07a |New Set 06:53p 0%| |Wed 26| 08:12a 06:40p 10:27 | 07:44p 07:08a | Set 07:21p 3%| |Thu 27| 08:14a 06:38p 10:24 | 07:42p 07:09a | Set 07:55p 8%| |Fri 28| 08:15a 06:37p 10:21 | 07:41p 07:10a | Set 08:39p 16%| |Sat 29| 08:16a 06:35p 10:18 | 07:40p 07:12a | Set 09:36p 25%| +------+-----------------------+----------------+-----------------------+ |Sun 30| 08:18a 06:34p 10:16 | 07:38p 07:13a | Set 10:45p 36%| |Mon 31| 08:19a 06:32p 10:13 | 07:37p 07:14a | Set 12:02a 47%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Generated using my LookingUp for DOS program.
09/01/2022 – Ephemeris – Let’s look at the skies for the month of September
This is Bob Moler with Ephemeris for Thursday, September 1st. Today the Sun will be up for 13 hours and 14 minutes, setting at 8:19, and it will rise tomorrow at 7:06. The Moon, 2 days before first quarter, will set at 10:48 this evening.
Let’s look at the skies for the month of September. The Sun will be moving at its greatest speed in its retreat to the south. Daylight hours in the Interlochen/Traverse City area and will drop from 13 hours and 14 minutes today to 11 hours 45 minutes on the 30th. The altitude of the Sun above the southern horizon at local noon will be 54 degrees today, and will descend to 42 degrees on the 30th. The season of summer is getting short, so enjoy it while you can. Summer ends and autumn begins at 9:04 p.m. on September 22nd. The full Harvest Moon shows on our calendars as being on the 10th. However, the Harvest Moon will occur on the night of the 9th, and morning of the 10th, because the precise time it will be full is 5:59 am, before it sets that morning.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.
Addendum
September Evening Star Chart

Star Chart for September 2022. Click on the image to enlarge it. Created using my LookingUp program.
The planets and stars are plotted for the 15th at 10 p.m. EDT in the evening and 6 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 1 hour 45 minutes earlier than the current time.
September Morning Star Chart

Star Chart for September 2022 (6 am EDT, September 15, 2022). Click on the image to enlarge it. Created using my LookingUp program.
For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- Leaky dipper drips on Leo.
- Follow the arc of the handle of the Big Dipper to the star Arcturus.
- The Summer Triangle is in red.
Twilight Limits, Nautical and Astronomical
EDT | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2022-09-01 | 5h26m | 6h04m | 21h29m | 22h07m | 22h48m | 5h26m | 0.33 |
2022-09-02 | 5h28m | 6h06m | 21h27m | 22h05m | 23h19m | 5h28m | 0.44 |
2022-09-03 | 5h29m | 6h07m | 21h25m | 22h03m | 23h59m | 5h29m | 0.55 |
2022-09-04 | 5h31m | 6h08m | 21h23m | 22h00m | – | 5h31m | 0.67 |
2022-09-05 | 5h32m | 6h10m | 21h21m | 21h58m | 0h50m | 5h32m | 0.77 |
2022-09-06 | 5h34m | 6h11m | 21h19m | 21h56m | 1h56m | 5h34m | 0.86 |
2022-09-07 | 5h35m | 6h12m | 21h17m | 21h54m | 3h12m | 5h35m | 0.93 |
2022-09-08 | 5h37m | 6h14m | 21h15m | 21h52m | 4h33m | 5h37m | 0.98 |
2022-09-09 | 5h38m | 6h15m | 21h13m | 21h49m | – | – | 1 |
2022-09-10 | 5h40m | 6h16m | 21h11m | 21h47m | – | – | 0.99 |
2022-09-11 | 5h41m | 6h18m | 21h09m | 21h45m | – | – | 0.96 |
2022-09-12 | 5h43m | 6h19m | 21h07m | 21h43m | – | – | 0.91 |
2022-09-13 | 5h44m | 6h20m | 21h05m | 21h41m | – | – | 0.84 |
2022-09-14 | 5h46m | 6h22m | 21h03m | 21h39m | 21h39m | 22h02m | 0.75 |
2022-09-15 | 5h47m | 6h23m | 21h01m | 21h36m | 21h36m | 22h30m | 0.66 |
2022-09-16 | 5h49m | 6h24m | 20h59m | 21h34m | 21h34m | 23h04m | 0.57 |
2022-09-17 | 5h50m | 6h26m | 20h57m | 21h32m | 21h32m | 23h45m | 0.47 |
2022-09-18 | 5h51m | 6h27m | 20h55m | 21h30m | 21h30m | – | 0.38 |
2022-09-19 | 5h53m | 6h28m | 20h53m | 21h28m | 21h28m | 0h34m | 0.29 |
2022-09-20 | 5h54m | 6h29m | 20h51m | 21h26m | 21h26m | 1h31m | 0.21 |
2022-09-21 | 5h56m | 6h31m | 20h49m | 21h24m | 21h24m | 2h33m | 0.13 |
2022-09-22 | 5h57m | 6h32m | 20h47m | 21h22m | 21h22m | 3h39m | 0.07 |
2022-09-23 | 5h58m | 6h33m | 20h45m | 21h20m | 21h20m | 4h46m | 0.03 |
2022-09-24 | 6h00m | 6h34m | 20h43m | 21h18m | 21h18m | 5h54m | 0.01 |
2022-09-25 | 6h01m | 6h36m | 20h41m | 21h16m | 21h16m | 6h01m | 0 |
2022-09-26 | 6h02m | 6h37m | 20h39m | 21h14m | 21h14m | 6h02m | 0.02 |
2022-09-27 | 6h04m | 6h38m | 20h37m | 21h12m | 21h12m | 6h04m | 0.06 |
2022-09-28 | 6h05m | 6h39m | 20h35m | 21h10m | 21h10m | 6h05m | 0.12 |
2022-09-29 | 6h06m | 6h41m | 20h33m | 21h08m | 21h21m | 6h06m | 0.2 |
2022-09-30 | 6h08m | 6h42m | 20h31m | 21h06m | 21h57m | 6h08m | 0.3 |
Twilight calendar was generated using Cartes du Ciel (Sky Charts).
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
Sep 1 Th Venus: 13.6° W 1 Th 5:12 pm Moon Descending Node 3 Sa 10:56 am Moon-Antares: 2.6° S 3 Sa 2:08 pm First Quarter 5 Mo 9:56 am Moon South Dec.: 27.2° S 6 Tu 5:30 pm Mars-Aldebaran: 4.3° N 7 We 2:17 pm Moon Perigee: 364,500 km 8 Th 6:31 am Moon-Saturn: 3.9° N 10 Sa 5:59 am Full Harvest Moon 11 Su 11:11 am Moon-Jupiter: 1.9° N 14 We 10:49 am Moon Ascending Node 15 Th 2:50 pm Moon-Pleiades: 3.1° N 16 Fr 5:03 pm Neptune Opposition 16 Fr 9:41 pm Moon-Mars: 4° S 17 Sa 5:52 pm Last Quarter 18 Su 6:10 pm Moon North Dec.: 27.3° N 19 Mo 10:44 am Moon Apogee: 404,600 km 20 Tu 3:40 am Moon-Pollux: 2.1° N 22 Th 9:04 pm Autumnal Equinox 23 Fr 2:47 am Mercury Inferior Conjunction 25 Su 5:54 pm New Moon 26 Mo 2:03 pm Jupiter Opposition 28 We 7:43 pm Moon Descending Node 30 Fr 4:20 pm Moon-Antares: 2.4° S Oct 1 Sa Venus: 5.8° W
All event times are given for UTC-4 hr: Eastern Daylight Saving Time.
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.
If you go to the above site, you can print out a list like the above for the entire year or calendar pages for your time zone.
Sun and Moon Rising and Setting Events
LU Ephemeris of Sky Events for Interlochen/TC September, 2022 Local time zone: EDT +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Thu 1| 07:05a 08:19p 13:14 | 09:25p 05:58a | Set 10:48p 31%| |Fri 2| 07:06a 08:17p 13:11 | 09:23p 06:00a | Set 11:18p 42%| |Sat 3| 07:07a 08:15p 13:08 | 09:21p 06:01a |F Qtr Set 11:58p 53%| +------+-----------------------+----------------+-----------------------+ |Sun 4| 07:08a 08:13p 13:05 | 09:19p 06:02a | Set 12:50a 64%| |Mon 5| 07:09a 08:12p 13:02 | 09:17p 06:04a | Set 01:55a 75%| |Tue 6| 07:11a 08:10p 12:59 | 09:15p 06:05a | Set 03:11a 84%| |Wed 7| 07:12a 08:08p 12:56 | 09:13p 06:07a | Set 04:33a 92%| |Thu 8| 07:13a 08:06p 12:53 | 09:11p 06:08a | Set 05:54a 97%| |Fri 9| 07:14a 08:04p 12:49 | 09:09p 06:09a | Set 07:14a 100%| |Sat 10| 07:15a 08:02p 12:46 | 09:07p 06:11a |Full Rise 08:35p 99%| +------+-----------------------+----------------+-----------------------+ |Sun 11| 07:17a 08:00p 12:43 | 09:05p 06:12a | Rise 08:56p 97%| |Mon 12| 07:18a 07:59p 12:40 | 09:03p 06:13a | Rise 09:16p 92%| |Tue 13| 07:19a 07:57p 12:37 | 09:01p 06:14a | Rise 09:38p 85%| |Wed 14| 07:20a 07:55p 12:34 | 08:59p 06:16a | Rise 10:02p 77%| |Thu 15| 07:21a 07:53p 12:31 | 08:57p 06:17a | Rise 10:30p 68%| |Fri 16| 07:22a 07:51p 12:28 | 08:55p 06:18a | Rise 11:03p 59%| |Sat 17| 07:24a 07:49p 12:25 | 08:53p 06:20a |L Qtr Rise 11:44p 49%| +------+-----------------------+----------------+-----------------------+ |Sun 18| 07:25a 07:47p 12:22 | 08:51p 06:21a | Rise 12:33a 40%| |Mon 19| 07:26a 07:45p 12:19 | 08:49p 06:22a | Rise 01:30a 31%| |Tue 20| 07:27a 07:43p 12:16 | 08:47p 06:24a | Rise 02:33a 22%| |Wed 21| 07:28a 07:41p 12:13 | 08:45p 06:25a | Rise 03:38a 15%| |Thu 22| 07:29a 07:40p 12:10 | 08:43p 06:26a | Rise 04:46a 9%| |Fri 23| 07:31a 07:38p 12:07 | 08:41p 06:27a | Rise 05:54a 4%| |Sat 24| 07:32a 07:36p 12:03 | 08:39p 06:29a | Rise 07:02a 1%| +------+-----------------------+----------------+-----------------------+ |Sun 25| 07:33a 07:34p 12:00 | 08:37p 06:30a |New Set 07:48p 0%| |Mon 26| 07:34a 07:32p 11:57 | 08:35p 06:31a | Set 08:07p 1%| |Tue 27| 07:35a 07:30p 11:54 | 08:33p 06:32a | Set 08:28p 5%| |Wed 28| 07:37a 07:28p 11:51 | 08:31p 06:34a | Set 08:51p 11%| |Thu 29| 07:38a 07:26p 11:48 | 08:29p 06:35a | Set 09:20p 18%| |Fri 30| 07:39a 07:25p 11:45 | 08:27p 06:36a | Set 09:57p 28%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Generated using my LookingUp for DOS program.
08/01/2022 – Ephemeris – Previewing August skies
This is Ephemeris for Monday, August 1st. Today the Sun will be up for 14 hours and 39 minutes, setting at 9:08, and it will rise tomorrow at 6:30. The Moon, halfway from new to first quarter, will set at 11:18 this evening.
Let’s look ahead at the month of August in the skies. Daylight hours will decrease from 14 hours and 39 minutes today to 13 hours 17 minutes on the 31st. The altitude of the Sun at local noon, that is degrees of angle above the southern horizon, will decrease from 63 degrees today to just over 53 degrees on the 31st. Straits area listeners can subtract one more degree from those angles. Local noon, when the Sun is due south, is about 1:43 p.m. The Perseid meteor shower will reach its peak all on the 12th. Unfortunately, the Moon will be only one day past full, so only the brightest meteors will be seen. However, for the next few days or so, the meteors can compete with the weaker moonlight of the waxing crescent Moon, though their numbers won’t be as high as it would be on a dark night of the peak.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.
Addendum
August Evening Star Chart

Star Chart for August 2022 (10 pm EDT, August 15, 2022). Click on image to enlarge it. Created using my LookingUp program.
Star Chart for August 2022 (10 pm EDT, August 15, 2022). Click on image to enlarge it. Created using my LookingUp program.
The planets and stars are plotted for the 15th at 10 p.m. EDT in the evening and 5 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 1 hour 45 minutes earlier than the current time.
Note the chart times are for the 15th. For each week before the 15th, add ½ hour (28 minutes if you’re picky). For each week after the 15th, subtract ½ hour. The planet positions are updated each Wednesday on this blog. For planet positions on dates other than the 15th.
August Morning Star Chart

Star Chart for August mornings, (5 a.m. EDT, August 15, 2022). Click on image to enlarge. Created using my LookingUp program.
Star Chart for August mornings, (5 a.m. EDT, August 15, 2022). Click on image to enlarge. Created using my LookingUp program.
For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- Leaky dipper drips on Leo.
- Follow the arc of the handle of the Big Dipper to the star Arcturus, and
- Extend like a spike to Spica.
- The Summer Triangle is in red.
- PerR is the radiant of the Perseid meteor shower (Peaks on the 12th)
Twilight Limits, Nautical and Astronomical
EDT | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2022-08-01 | 4h31m | 5h19m | 22h27m | 23h15m | 23h18m | 4h31m | 0.18 |
2022-08-02 | 4h33m | 5h21m | 22h25m | 23h13m | 23h37m | 4h33m | 0.27 |
2022-08-03 | 4h35m | 5h22m | 22h24m | 23h11m | 23h57m | 4h35m | 0.37 |
2022-08-04 | 4h37m | 5h24m | 22h22m | 23h09m | – | 4h37m | 0.47 |
2022-08-05 | 4h38m | 5h25m | 22h20m | 23h07m | 0h19m | 4h38m | 0.58 |
2022-08-06 | 4h40m | 5h27m | 22h19m | 23h05m | 0h46m | 4h40m | 0.69 |
2022-08-07 | 4h42m | 5h28m | 22h17m | 23h03m | 1h20m | 4h42m | 0.8 |
2022-08-08 | 4h44m | 5h30m | 22h15m | 23h00m | 2h05m | 4h44m | 0.88 |
2022-08-09 | 4h46m | 5h31m | 22h13m | 22h58m | 3h04m | 4h46m | 0.95 |
2022-08-10 | 4h48m | 5h33m | 22h11m | 22h56m | 4h16m | 4h48m | 0.99 |
2022-08-11 | 4h50m | 5h34m | 22h10m | 22h54m | – | – | 1 |
2022-08-12 | 4h52m | 5h36m | 22h08m | 22h52m | – | – | 0.98 |
2022-08-13 | 4h53m | 5h37m | 22h06m | 22h49m | – | – | 0.94 |
2022-08-14 | 4h55m | 5h38m | 22h04m | 22h47m | – | – | 0.87 |
2022-08-15 | 4h57m | 5h40m | 22h02m | 22h45m | 22h45m | 22h55m | 0.79 |
2022-08-16 | 4h59m | 5h41m | 22h00m | 22h43m | 22h43m | 23h16m | 0.7 |
2022-08-17 | 5h01m | 5h43m | 21h58m | 22h41m | 22h41m | 23h38m | 0.6 |
2022-08-18 | 5h02m | 5h44m | 21h56m | 22h38m | 22h38m | – | 0.5 |
2022-08-19 | 5h04m | 5h46m | 21h55m | 22h36m | 22h36m | 0h03m | 0.4 |
2022-08-20 | 5h06m | 5h47m | 21h53m | 22h34m | 22h34m | 0h32m | 0.31 |
2022-08-21 | 5h08m | 5h49m | 21h51m | 22h32m | 22h32m | 1h08m | 0.23 |
2022-08-22 | 5h10m | 5h50m | 21h49m | 22h29m | 22h29m | 1h52m | 0.15 |
2022-08-23 | 5h11m | 5h52m | 21h47m | 22h27m | 22h27m | 2h44m | 0.09 |
2022-08-24 | 5h13m | 5h53m | 21h45m | 22h25m | 22h25m | 3h43m | 0.04 |
2022-08-25 | 5h15m | 5h55m | 21h43m | 22h23m | 22h23m | 4h47m | 0.01 |
2022-08-26 | 5h16m | 5h56m | 21h41m | 22h20m | 22h20m | 5h16m | 0 |
2022-08-27 | 5h18m | 5h57m | 21h39m | 22h18m | 22h18m | 5h18m | 0.01 |
2022-08-28 | 5h20m | 5h59m | 21h37m | 22h16m | 22h16m | 5h20m | 0.04 |
2022-08-29 | 5h21m | 6h00m | 21h35m | 22h14m | 22h14m | 5h21m | 0.08 |
2022-08-30 | 5h23m | 6h02m | 21h33m | 22h12m | 22h12m | 5h23m | 0.15 |
2022-08-31 | 5h25m | 6h03m | 21h31m | 22h09m | 22h24m | 5h25m | 0.23 |
Twilight calendar was generated using Cartes du Ciel (Sky Charts).
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
Aug 1 Mo Venus: 21.7° W 4 Th 12:58 am Mercury-Regulus: 0.7° N 5 Fr 7:06 am First Quarter 5 Fr 4:30 pm Moon Descending Node 6 Sa 5:33 am Venus-Pollux: 6.5° S 7 Su 4:29 am Moon-Antares: 2.8° S 9 Tu 2:36 am Moon South Dec.: 27° S 10 We 1:14 pm Moon Perigee: 359,800 km 11 Th 9:36 pm Full Sturgeon Moon 11 Th 11:55 pm Moon-Saturn: 3.9° N 12 Fr 9:20 pm Perseid Shower: ZHR = 90 14 Su 12:35 pm Saturn Opposition 15 Mo 5:37 am Moon-Jupiter: 1.9° N 17 We 12:02 pm Venus-Beehive: 0.9° S 18 Th 6:59 am Moon Ascending Node 19 Fr 12:36 am Last Quarter 19 Fr 6:32 am Moon-Pleiades: 3.4° N 19 Fr 8:16 am Moon-Mars: 2.9° S 20 Sa 4:36 am Mars-Pleiades: 5.6° S 22 Mo 11:08 am Moon North Dec.: 27.1° N 22 Mo 5:53 pm Moon Apogee: 405,400 km 23 Tu 8:17 pm Moon-Pollux: 2.3° N 24 We 9:46 pm Moon-Beehive: 3.8° S 25 Th 4:58 pm Moon-Venus: 4.7° S 27 Sa 4:17 am New Moon 27 Sa 11:59 am Mercury Elongation: 27.3° E Sep 1 Th Venus: 13.6° W
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.
If you go to the above site, you can print out a list like the above for the entire year or calendar pages for your time zone.
Sun and Moon Rising and Setting Events
LU Ephemeris of Sky Events for Interlochen/TC August, 2022 Local time zone: EDT +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Mon 1| 06:29a 09:08p 14:39 | 10:23p 05:13a | Set 11:18p 17%| |Tue 2| 06:30a 09:07p 14:37 | 10:22p 05:14a | Set 11:37p 25%| |Wed 3| 06:31a 09:05p 14:34 | 10:20p 05:16a | Set 11:56p 34%| |Thu 4| 06:32a 09:04p 14:32 | 10:18p 05:17a | Set 12:19a 45%| |Fri 5| 06:33a 09:03p 14:29 | 10:17p 05:19a |F Qtr Set 12:45a 56%| |Sat 6| 06:34a 09:01p 14:27 | 10:15p 05:20a | Set 01:19a 67%| +------+-----------------------+----------------+-----------------------+ |Sun 7| 06:35a 09:00p 14:24 | 10:13p 05:22a | Set 02:04a 77%| |Mon 8| 06:37a 08:59p 14:21 | 10:11p 05:23a | Set 03:03a 86%| |Tue 9| 06:38a 08:57p 14:19 | 10:10p 05:25a | Set 04:15a 94%| |Wed 10| 06:39a 08:56p 14:16 | 10:08p 05:26a | Set 05:37a 98%| |Thu 11| 06:40a 08:54p 14:14 | 10:06p 05:28a |Full Rise 09:18p 100%| |Fri 12| 06:41a 08:53p 14:11 | 10:04p 05:29a | Rise 09:48p 99%| |Sat 13| 06:42a 08:51p 14:08 | 10:02p 05:31a | Rise 10:13p 95%| +------+-----------------------+----------------+-----------------------+ |Sun 14| 06:44a 08:50p 14:05 | 10:00p 05:32a | Rise 10:34p 88%| |Mon 15| 06:45a 08:48p 14:03 | 09:58p 05:34a | Rise 10:55p 80%| |Tue 16| 06:46a 08:46p 14:00 | 09:57p 05:35a | Rise 11:15p 71%| |Wed 17| 06:47a 08:45p 13:57 | 09:55p 05:37a | Rise 11:37p 62%| |Thu 18| 06:48a 08:43p 13:54 | 09:53p 05:38a | Rise 12:02a 52%| |Fri 19| 06:49a 08:41p 13:52 | 09:51p 05:40a |L Qtr Rise 12:32a 42%| |Sat 20| 06:51a 08:40p 13:49 | 09:49p 05:41a | Rise 01:08a 33%| +------+-----------------------+----------------+-----------------------+ |Sun 21| 06:52a 08:38p 13:46 | 09:47p 05:43a | Rise 01:51a 24%| |Mon 22| 06:53a 08:36p 13:43 | 09:45p 05:44a | Rise 02:43a 17%| |Tue 23| 06:54a 08:35p 13:40 | 09:43p 05:46a | Rise 03:42a 10%| |Wed 24| 06:55a 08:33p 13:37 | 09:41p 05:47a | Rise 04:46a 5%| |Thu 25| 06:57a 08:31p 13:34 | 09:39p 05:48a | Rise 05:52a 2%| |Fri 26| 06:58a 08:30p 13:31 | 09:37p 05:50a | Rise 07:00a 0%| |Sat 27| 06:59a 08:28p 13:28 | 09:35p 05:51a |New Set 09:04p 1%| +------+-----------------------+----------------+-----------------------+ |Sun 28| 07:00a 08:26p 13:25 | 09:33p 05:53a | Set 09:24p 3%| |Mon 29| 07:01a 08:24p 13:23 | 09:31p 05:54a | Set 09:43p 7%| |Tue 30| 07:02a 08:22p 13:20 | 09:29p 05:56a | Set 10:02p 13%| |Wed 31| 07:04a 08:21p 13:17 | 09:27p 05:57a | Set 10:23p 21%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Generated using my LookingUp for DOS program.
06/30/2022 – Ephemeris – Previewing the skies of July
This is Bob Moler with Ephemeris for International Asteroid Day, Thursday, June 30th. On this day in 1908, 114 years ago, a small asteroid exploded over the Tunguska region of Siberia. Today the Sun will be up for 15 hours and 31 minutes, setting at 9:32, and it will rise tomorrow at 6:01. The Moon, 2 days past new, will set at 11:11 this evening.
Let’s preview July’s skies. The Sun, having reached its northern solstice, is beginning to slide southward again, at first imperceptibly, then with greater speed. The daylight hours will decrease from 15 hours and 30 minutes tomorrow to 14 hours 41 minutes at month’s end. The daylight hours will be slightly shorter south of Interlochen, and slightly longer to the north. The altitude of the Sun at local noon, when the Sun is due south, will decrease from 68 degrees today to 63 degrees at month’s end. The Sun will be a degree lower in the Straits area. Despite the warmth, the Earth will reach its greatest distance from the Sun this Sunday the 3rd.
The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.
Addendum
The planets and stars are plotted for the 15th at 11 p.m. EDT in the evening and 4:30 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian, West 75° longitude. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 1 hour 45 minutes earlier than the current time.
Note the chart times are for the 15th. For each week before the 15th, add ½ hour (28 minutes if you’re picky). For each week after the 15th, subtract ½ hour. The planet positions are updated each Wednesday on this blog. For planet positions on dates other than the 15th.
July Morning Star Chart

Star Chart for July mornings, 2022 (4:30 a.m. EDT July 15, 2022). Created using my LookingUp program. Click on image to enlarge.
For a list of constellation names to go with the abbreviations, click here.
- Pointer stars at the front of the bowl of the Big Dipper point to Polaris, the North Star.
- Leaky dipper drips on Leo.
- Follow the arc of the handle of the Big Dipper to the star Arcturus, and
- Extend like a spike to Spica.
- The Summer Triangle is in red.
- DAqR is the radiant of the South Delta Aquariid meteor shower (Peaks on the 27th)
Twilight Limits, Nautical and Astronomical
EDT | |||||||
Morning | Twilight | Evening | Twilight | Dark | Night | Moon | |
Date | Astro. | Nautical | Nautical | Astro. | Start | End | Illum. |
2022-07-01 | 3h39m | 4h41m | 23h00m | 0h03m | 0h03m | 3h39m | 0.09 |
2022-07-02 | 3h40m | 4h42m | 23h00m | 0h02m | 0h02m | 3h40m | 0.15 |
2022-07-03 | 3h41m | 4h43m | 22h59m | 0h01m | 0h11m | 3h41m | 0.22 |
2022-07-04 | 3h42m | 4h44m | 22h59m | 0h00m | 0h33m | 3h42m | 0.31 |
2022-07-05 | 3h43m | 4h45m | 22h58m | 23h59m | 0h54m | 3h43m | 0.41 |
2022-07-06 | 3h45m | 4h45m | 22h57m | 23h58m | 1h13m | 3h45m | 0.51 |
2022-07-07 | 3h46m | 4h46m | 22h57m | 23h57m | 1h32m | 3h46m | 0.62 |
2022-07-08 | 3h47m | 4h47m | 22h56m | 23h56m | 1h53m | 3h47m | 0.72 |
2022-07-09 | 3h49m | 4h48m | 22h55m | 23h55m | 2h18m | 3h49m | 0.82 |
2022-07-10 | 3h50m | 4h50m | 22h55m | 23h54m | 2h48m | 3h50m | 0.9 |
2022-07-11 | 3h52m | 4h51m | 22h54m | 23h52m | 3h27m | 3h52m | 0.96 |
2022-07-12 | 3h54m | 4h52m | 22h53m | 23h51m | – | – | 1 |
2022-07-13 | 3h55m | 4h53m | 22h52m | 23h50m | – | – | 1 |
2022-07-14 | 3h57m | 4h54m | 22h51m | 23h48m | – | – | 0.97 |
2022-07-15 | 3h59m | 4h55m | 22h50m | 23h47m | – | – | 0.91 |
2022-07-16 | 4h01m | 4h57m | 22h49m | 23h45m | 23h45m | 23h50m | 0.84 |
2022-07-17 | 4h02m | 4h58m | 22h48m | 23h43m | 23h43m | – | 0.74 |
2022-07-18 | 4h04m | 4h59m | 22h47m | 23h42m | 23h42m | 0h13m | 0.64 |
2022-07-19 | 4h06m | 5h01m | 22h45m | 23h40m | 23h40m | 0h33m | 0.54 |
2022-07-20 | 4h08m | 5h02m | 22h44m | 23h38m | 23h38m | 0h53m | 0.44 |
2022-07-21 | 4h10m | 5h03m | 22h43m | 23h36m | 23h36m | 1h13m | 0.34 |
2022-07-22 | 4h12m | 5h05m | 22h42m | 23h35m | 23h35m | 1h36m | 0.25 |
2022-07-23 | 4h13m | 5h06m | 22h40m | 23h33m | 23h33m | 2h02m | 0.18 |
2022-07-24 | 4h15m | 5h07m | 22h39m | 23h31m | 23h31m | 2h33m | 0.11 |
2022-07-25 | 4h17m | 5h09m | 22h38m | 23h29m | 23h29m | 3h11m | 0.06 |
2022-07-26 | 4h19m | 5h10m | 22h36m | 23h27m | 23h27m | 3h58m | 0.02 |
2022-07-27 | 4h21m | 5h12m | 22h35m | 23h25m | 23h25m | 4h21m | 0 |
2022-07-28 | 4h23m | 5h13m | 22h33m | 23h23m | 23h23m | 4h23m | 0 |
2022-07-29 | 4h25m | 5h15m | 22h32m | 23h21m | 23h21m | 4h25m | 0.02 |
2022-07-30 | 4h27m | 5h16m | 22h30m | 23h19m | 23h19m | 4h27m | 0.06 |
2022-07-31 | 4h29m | 5h18m | 22h28m | 23h17m | 23h17m | 4h29m | 0.11 |
Twilight calendar was generated using Cartes du Ciel (Sky Charts).
See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/.
NASA Calendar of Planetary Events
Jul 1 Fr Venus: 29.6° W 1 Fr 9:21 am Moon-Beehive: 3.9° S 3 Su 10:59 pm Earth at Aphelion: 1.0167 AU 6 We 10:14 pm First Quarter 9 Sa 1:28 pm Moon Descending Node 10 Su 7:50 pm Moon-Antares: 3° S 12 Tu 10:30 am NASA will release 1st full color images from the Webb Space Telescope 12 Tu 5:16 pm Moon South Dec.: 26.9° S 13 We 5:08 am Moon Perigee: 357,300 km 13 We 2:37 pm Full Buck Moon 15 Fr 4:16 pm Moon-Saturn: 4° N 16 Sa 3:30 pm Mercury Superior Conj. 18 Mo 8:55 pm Moon-Jupiter: 2.3° N 20 We 10:18 am Last Quarter 21 Th 12:46 pm Moon-Mars: 1.1° S 22 Fr 5:21 am Moon Ascending Node 22 Fr 11:29 pm Moon-Pleiades: 3.7° N 26 Tu 5:19 am Moon North Dec.: 26.9° N 26 Tu 6:22 am Moon Apogee: 406,300 km 26 Tu 10:12 am Moon-Venus: 4.6° S 28 Th 5:26 am Delta Aquariid Shower: ZHR = 20 28 Th 1:55 pm New Moon Aug 1 Mo Venus: 21.7° W
All event times are given for UTC-4 hr: Eastern Daylight Saving Time.
Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html.
If you go to the above site you can print out a list like the above for the entire year or calendar pages for your time zone.
Sun and Moon Rising and Setting Events
LU Ephemeris of Sky Events for Interlochen/TC July, 2022 Local time zone: EDT +-----------------------------------------------------------------------+ | DATE | SUN SUN DAYLIGHT| TWILIGHT* |MOON RISE OR ILLUM | | | RISE SET HOURS | END START |PHASE SET** TIME FRACTN| +=======================================================================+ |Fri 1| 06:01a 09:32p 15:30 | 10:57p 04:35a | Set 11:44p 8%| |Sat 2| 06:01a 09:31p 15:30 | 10:56p 04:36a | Set 12:10a 13%| +------+-----------------------+----------------+-----------------------+ |Sun 3| 06:02a 09:31p 15:29 | 10:56p 04:37a | Set 12:33a 21%| |Mon 4| 06:02a 09:31p 15:28 | 10:56p 04:38a | Set 12:53a 29%| |Tue 5| 06:03a 09:30p 15:27 | 10:55p 04:38a | Set 01:12a 39%| |Wed 6| 06:04a 09:30p 15:26 | 10:54p 04:39a |F Qtr Set 01:32a 49%| |Thu 7| 06:04a 09:30p 15:25 | 10:54p 04:40a | Set 01:53a 60%| |Fri 8| 06:05a 09:29p 15:24 | 10:53p 04:41a | Set 02:17a 70%| |Sat 9| 06:06a 09:29p 15:22 | 10:52p 04:42a | Set 02:47a 80%| +------+-----------------------+----------------+-----------------------+ |Sun 10| 06:07a 09:28p 15:21 | 10:51p 04:43a | Set 03:27a 89%| |Mon 11| 06:08a 09:28p 15:20 | 10:51p 04:44a | Set 04:19a 95%| |Tue 12| 06:08a 09:27p 15:18 | 10:50p 04:46a | Set 05:26a 99%| |Wed 13| 06:09a 09:26p 15:17 | 10:49p 04:47a |Full Rise 10:05p 100%| |Thu 14| 06:10a 09:26p 15:15 | 10:48p 04:48a | Rise 10:49p 98%| |Fri 15| 06:11a 09:25p 15:14 | 10:47p 04:49a | Rise 11:23p 92%| |Sat 16| 06:12a 09:24p 15:12 | 10:46p 04:50a | Rise 11:50p 85%| +------+-----------------------+----------------+-----------------------+ |Sun 17| 06:13a 09:24p 15:10 | 10:44p 04:52a | Rise 12:12a 76%| |Mon 18| 06:14a 09:23p 15:08 | 10:43p 04:53a | Rise 12:33a 66%| |Tue 19| 06:15a 09:22p 15:07 | 10:42p 04:54a | Rise 12:52a 56%| |Wed 20| 06:16a 09:21p 15:05 | 10:41p 04:56a |L Qtr Rise 01:13a 46%| |Thu 21| 06:17a 09:20p 15:03 | 10:40p 04:57a | Rise 01:35a 36%| |Fri 22| 06:18a 09:19p 15:01 | 10:38p 04:58a | Rise 02:01a 27%| |Sat 23| 06:19a 09:18p 14:59 | 10:37p 05:00a | Rise 02:32a 19%| +------+-----------------------+----------------+-----------------------+ |Sun 24| 06:20a 09:17p 14:57 | 10:35p 05:01a | Rise 03:11a 12%| |Mon 25| 06:21a 09:16p 14:55 | 10:34p 05:03a | Rise 03:57a 7%| |Tue 26| 06:22a 09:15p 14:53 | 10:33p 05:04a | Rise 04:51a 3%| |Wed 27| 06:23a 09:14p 14:50 | 10:31p 05:05a | Rise 05:52a 1%| |Thu 28| 06:24a 09:13p 14:48 | 10:30p 05:07a |New Set 09:46p 0%| |Fri 29| 06:25a 09:12p 14:46 | 10:28p 05:08a | Set 10:14p 2%| |Sat 30| 06:26a 09:10p 14:44 | 10:27p 05:10a | Set 10:38p 5%| +------+-----------------------+----------------+-----------------------+ |Sun 31| 06:27a 09:09p 14:41 | 10:25p 05:11a | Set 10:59p 10%| +-----------------------------------------------------------------------+ * Nautical Twilight ** Moonrise or moonset, whichever occurs between sunrise and sunset
Created using my LookingUp for DOS output as text.