Enjoying EarthSky? Subscribe.

271,753 subscribers and counting ...

Custer Institute

The Custer Institute and Observatory is Long Island’s oldest public observatory (est.1927). Open to the public every Saturday evening from dusk until midnight. “A huge and wonderful observatory with over 22 telescopes set up for free for the public to come look through every clear Saturday night.”

The Custer Institute and Observatory is Long Island’s oldest public observatory (est.1927). Open to the public every Saturday evening from dusk until midnight. “A huge and wonderful observatory with over 22 telescopes set up for free for the public to come look through every clear Saturday night.”

Deborah Byrd

MORE ARTICLES