Archive for September 19, 2018

09/19/2018 – Ephemeris – Wednesday is bright planet day on Ephemeris

September 19, 2018 Comments off

Ephemeris for Talk Like a Pirate Day, Wednesday, September 19th. The Sun will rise at 7:26. It’ll be up for 12 hours and 19 minutes, setting at 7:45. The Moon, 3 days past first quarter, will set at 2:47 tomorrow morning.

Let’s look at the bright planets for this week. Four of them are visible in the evening sky. The brilliant Venus will be visible in the western twilight from about 8 p.m. until it sets at 8:40 p.m. Jupiter will be in the southwest as it gets dark. It is only outshone by Venus, and the Moon. The big planet will set at 9:40 p.m. Saturn will start the evening low in the southern sky and will stay relatively low, above the Teapot of Sagittarius. It will be due south at 7:59 p.m. and will set at 12:24 a.m. Mars will be low in the south-southeast as the skies darken tonight. and is now 49.5 million miles (79.7 million km) away. Mars will be due south at 10:09 p.m., and it will set at 2:27 a.m.

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


Evening planets
The evening planets at 8:15 p.m. September 19, 2018. Click on image to enlarge. Created using Stellarium.
Binocular Moon
The gibbous Moon as it should appear tonight in binoculars. Created using Stellarium.
Telescopic planets
Venus, Jupiter, Saturn and Mars with the same magnification at 8:30 p.m. September 19, 2018. Yes, your eyes don’t deceive you, Venus is larger than Jupiter. Venus is 39.0 ” (seconds of arc) in diameter, while Jupiter is 33.3″. Venus is approaching us, while Jupiter is being left behind by the Earth. Mars is also shown enlarged. The global dust storm is abating, so the albedo features are visible to be seen. 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 19, 2018. The night ends on the left with sunrise on the 20th. Click on the image to enlarge. Created using my LookingUp program.