About Us
The General Motors Astronomy Club (GMAC) is a non-profit organization of people dedicated to sharing the night sky with others. The club hosts monthly events at the General Motors Milford Proving Ground, as well as sidewalk astronomy events in downtown Milford and other locations in Southeast Michigan.
Founded in 2017, the club continues to grow and welcome new members. Most events are free and open to the public, and no equipment is required to participate. Check our event schedule for upcoming observing opportunities.
Practical guides for astrophotography gear, imaging workflows, and monthly sky targets.
Official NASA updates on missions, discoveries, and deep space science stories.
Observing guides, current astronomy news, and seasonal sky-at-a-glance briefings.
Community-oriented commentary and observing notes from longtime astronomy enthusiasts.