Home > Ephemeris Program, GTAS Outreach Event, Star Party, Uncategorized > Ephemeris: 08/22/2025 – Star Party tomorrow night the 23rd

Ephemeris: 08/22/2025 – Star Party tomorrow night the 23rd

August 22, 2025

This is Ephemeris for Friday, August 22nd. Today the Sun will be up for 13 hours and 42 minutes, setting at 8:36, and it will rise tomorrow at 6:55. The Moon, 1 day before new, will rise at 7:10 tomorrow morning.

Weather permitting, the Grand Traverse Astronomical Society and the Park Rangers will host a star party at Sleeping Bear Dunes National Lakeshore, at the Dune Climb tomorrow night, starting around 9 PM. The parking lane closest to the dune will be blocked off for telescopes. The start time is after sunset, and the brighter stars will be visible by 9:15. As it gets darker some of the brighter interstellar wonders of our Milky Way galaxy, will appear, with many star clusters and nebulae, including a peek at the Great Andromeda Galaxy next door. The Rangers will leave around 11 PM however if it stays clear and there’s enough interest, society members with their telescopes will stay longer. This is the last Sleeping Bear Dunes star party this year.

The astronomical event times given in this blog are for the Traverse City/Interlochen area of Michigan (Lat 44.7° N, Long 85.7° W; EDT, UT – 4 hours) unless stated otherwise. Times will be different for other locations.

Addendum

Setting up for the star party
Setting up for the star party at the Sleeping Bear Dunes’ Dune Climb parking lot on July 26, 2025.
Looking for the first star to appear.
Looking for the first star to appear, Vega, a half hour after sunset.
Park rangers set up a lighted trail as an added night activity
Park rangers set up a lighted trail as an added night activity that would also take place if the star party is clouded out.
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