Michigan's largest amateur star party.

Thank you for yet another wonderful star party this year! The 2025 twenty-third GLSG star party will be held from September 25 - 28, 2025. Registration will open in June of 2025. The 2026 star party is tentatively scheduled for (coming soon), 2026. The raffle prize for the 2025 star party will again be the ZWO Seestar S50 All-in-One Smart Telescope.

Thank you for over twenty years of planets, galaxies, mud, prizes, fun, and dark skies! We've enjoyed so many moments with you and are excited for the 2025 star party. Check out our Facebook page for recent updates and pictures. If you have pictures to share, please message us on Facebook.

Mail in registration is currently CLOSED with plans to open in June of 2025.

Location and dark skies are the main attraction of this star party. Gladwin, MI is a central location that provides excellent observing without traveling hours into Northern Michigan. Limiting magnitudes are estimated to be around 6.5 at zenith with some minor light domes from the cities of Mt. Pleasant and Midland, some 30 miles away. This is a star party for the astronomer who loves to observe and mingle with other astronomers. Some practical and interesting talks are scheduled to enhance your weekend experience.

The GLSG star party will be held at the River Valley RV Park in Gladwin, MI. Directions and more information about the star party can be found in the registration form.