Archive for June 21, 2017

06/21/2017 – Ephemeris – Checking out the bright planets on the first day of summer

June 21, 2017 1 comment

Ephemeris for Wednesday, June 21st. Today the Sun will be up for 15 hours and 33 minutes, setting at 9:31, and it will rise tomorrow at 5:57. The Moon, 2 days before new, will rise at 4:54 tomorrow morning.

Let’s take our weekly look at the bright planets on this first day of summer. Dominating the evening sky now is Jupiter in the southwest. The bright blue-white star Spica, which pales in comparison to it, is seen left and below it. In even the smallest telescopes Jupiter’s four largest moons can be seen. They shift positions night from to night and sometimes even as you watch. Jupiter will set at 2:18 a.m. Saturn can now be seen in the evening as twilight fades in the southeast. It is now officially an evening planet after opposition last week. At 5 a.m. both Saturn and Venus will be seen in the morning twilight. Brilliant Venus will be low in the east tomorrow morning after rising at 3:37 a.m.

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


Evening Planets

Jupiter and Saturn and the southern evening constellations at 10:30 p.m., June 21, 2017. Click on the image to enlarge. Created using Stellarium.

Jupiter and moons

Jupiter and its four Galilean moons as they might be seen in a telescope at 10:30 p.m,. June 21, 2017. Created using Cartes du Ciel (Sky Charts).

Saturn and moons

Saturn and its brightest moons overnight June 21/22, 2017. Created using Cartes du Ciel (Sky Charts).

Morning planets

Saturn, Venus and the rising crescent Moon at 5 a.m. June 22, 2017. Click on the image to enlarge. Created using Stellarium. Click on the image to expand.

Telescopic Venus

Venus as it might be seen through a telescope at 5 a.m. June 22, 2017. This is displayed at a larger scale/magnification than the Jupiter or Saturn images above. Created using Stellarium.


The skinny crescent moon as it might be seen in binoculars, after 5 a.m., June 22, 2017. Created using Stellarium.

Planets and Moon on a single night

Planets at sunset and sunrise of a single night starting with sunset on the right on June 21, 2017. The night ends on the left with sunrise on June 22. Click on the image to enlarge. Created using my LookingUp program.