Home > Ephemeris Program, Month preview > 08/01/2022 – Ephemeris – Previewing August skies

08/01/2022 – Ephemeris – Previewing August skies

August 1, 2022

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

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

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.

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