Archive for September 11, 2019

09/11/2019 – Ephemeris – Let’s check out the bright planets or this week

September 11, 2019 Comments off

Ephemeris for Wednesday, September 11th. Today the Sun will be up for 12 hours and 44 minutes, setting at 8:01, and it will rise tomorrow at 7:17. The Moon, 3 days before full, will set at 5:29 tomorrow morning.

Let’s look at the planets for this week. Mars, Venus and Mercury are too close to the Sun to be seen. Venus and Mercury are on the evening or east side of the Sun, Mars is on the west or morning side. Bright Jupiter will be in the south-southwestern sky as it gets dark. With steadily held binoculars a few of the 4 largest satellites of Jupiter can be seen. All four of Jupiter’s Galilean satellites can be spotted in telescopes before 10 this evening. The innermost moon Io will move in front of the planet until after midnight. Jupiter will set before then at 11:46 p.m. Saturn, the ringed planet, will be in the southern sky in the evening. It will pass the meridian, due south at 9:20 p.m. and will set at 1:46 a.m.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.


Evening planets

Jupiter, Saturn and the Moon with the bright stars of the southern summer sky at 10 p.m. September 11, 2019. Click on the image to enlarge. Created using Stellarium.

Binocular Moon

The gibbous Moon as it might appear in binoculars at 10 p.m. September 11, 2019. Created using Stellarium.,

Telescopic planets

Telescopic views of Jupiter and Saturn with the same magnification at 10 p.m. September 11, 2019. Io starts a transit at 9:58 p.m. or 1:58 tomorrow UT. The shadow begins to cross at 11:15 p.m., 03:15 UT. The transit ends at 12:10 a.m., 4:10 UT, after Jupiter sets for observers in the listening area. The moons are much dimmer than what shows here so spotting the moon against the face of Jupiter is difficult. Created using Cartes du Ciel (Sky Charts).

Planets and the Moon on a single night

Planets and the Moon at sunset and sunrise of a single night starting with sunset on the right on September 11, 2019. The night ends on the left with sunrise on the 12th. Click on the image to enlarge. Created using my LookingUp program.