Archive for October 17, 2018

10/17/2018 – Ephemeris – Where are the bright planets tonight?

October 17, 2018 Comments off

Ephemeris for Wednesday, October 17th. The Sun will rise at 8:00. It’ll be up for 10 hours and 53 minutes, setting at 6:54. The Moon, 1 day past first quarter, will set at 1:33 tomorrow morning.

Let’s look at the bright planets for tonight. Three of them are visible in the evening sky. Venus though still officially an evening planet sets before the Sun because it is south of the Sun’s path. Jupiter will be very low in the west-southwest as skies darken. It will set at 8:16 p.m. Saturn, the ringed planet, will start the evening low in the southwestern sky and will set at 10:39 p.m. Mars will be low in the south as the skies darken tonight. and is now 64.6 million miles (104.0 million km) away. Mars will be due south at 9:04 p.m., and it will set at 2:03 a.m. Tonight Mars will be east or left of the waxing gibbous Moon. Mars is picking up speed moving eastward, crossing the constellation of Capricornus this month.

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


Evening Planets
The evening planets and the Moon at 7:45 p.m. October 17, 2018. Click on image to enlarge. Created using Stellarium.
Binocular Moon
The waxing gibbous Moon as it should appear tonight in binoculars. Created using Stellarium.
Telescopic Planets
Saturn and Mars with the same magnification at 7:45 p.m. 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 October 17, 2018. The night ends on the left with sunrise on the 18th. Click on the image to enlarge. Created using my LookingUp program.