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07/07/2021 – Ephemeris – Let’s search for the naked-eye planets for this week

July 7, 2021 Comments off

This is Ephemeris for Wednesday, July 7th. Today the Sun will be up for 15 hours and 24 minutes, setting at 9:30, and it will rise tomorrow at 6:05. The Moon, 2 days before new, will rise at 4:36 tomorrow morning.

Let’s search for the naked-eye planets for this week. Venus can be spotted low in the west-northwest twilight by 10 pm or a little after. It will set at 11:03 pm. Venus will be spending the rest of summer low in the western sky, and not be as conspicuous as it usually is as the Evening Star. Mars’ visibility is getting to be a real problem. It can be found to the left and a bit above Venus at 10:30 pm, and will set at 11:06 pm. Saturn and Jupiter, are seen best in the morning sky. Saturn will rise before midnight at 10:47 pm. It’s seen with the stars of Capricornus. Brighter Jupiter, to the left of Saturn, will rise at 11:34 pm. By 5 am, these two planets will be in the southern sky in the morning twilight.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT-4 hr). They may be different for your location.

Addendum

Venus and Mars in the evening twilight

Venus and Mars in the evening twilight at 10:30 pm tonight, July 7, 2021. I’m not promising that Mars will be visible, since it’s now down to second magnitude. Created using Stellarium.

Saturn Finder animation for 11:30 pm

Saturn finder animation for 11:30 pm tonight, July 7, 2021. Click on the image to enlarge it. Created using Stellarium and GIMP.

Jupiter and Saturn at 5 am

Jupiter and Saturn at 5 am tomorrow morning, July 8, 2021. Created using Stellarium.

Mercury and the Moon at 5:15 am

Mercury and the Moon at 5:15 am tomorrow morning, July 8, 2021. Created using Stellarium.

Telescopic planets

The planets as seen in a telescope (north up) with the same magnification for the night of July 7/8, 2021. Times of the display are: Venus, 10:30 pm; Saturn and Jupiter, 5 am. Apparent diameters: Venus, 11.46″; Saturn 18.41″, its rings 42.88″; Jupiter, 46.18″. Mars has an apparent diameter of only 3.80″, and Mercury of 7.32 and are not represented. The ” symbol means seconds of arc (1/3600th of a degree.) Click on the image to enlarge it. Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night sunset 070721 to sunrise 070821

Planets and the Moon at sunset and sunrise of a single night, starting with sunset on the right on July 7, 2021. The night ends on the left with sunrise on the 8th. Click on the image to enlarge. Created using my LookingUp program.