Welcome to the Custer Institute & Observatory

Long Island's oldest public observatory (est. 1927)
Suggested donation of $5 adults and $3 children.

All observing is done out in the open air, under the stars. Dress appropriately.

For the Curious

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, our staff of volunteers will give you a tour of the facilities and the night sky through our powerful telescopes. Custer has a library, museum, and gift shop. Frequent lectures, classes,concerts, art exhibits and other special events.

Custer Links

Updated: 11/05/Two Thousand Eighteen

Saturday Night Observing: Open 7pm-Midnight

Check our weather and the moon phase

Weather permitting, Saturday Night Observing is from 7pm to midnight where volunteer Staff provide guided tours of the sky.

  More to come! Plans are being made! Check back often!
  November 2018
Nov 16.
Custer honeybee club meeting

Come find out what the Buzz is all about!
  Debember 2018
Dec 15.
A Jazzy Holiday with the Transitions Saxophone Quartet

Join us for a jazz-infused concert of holiday favorites including Leroy Anderson's "Sleigh Ride" Vince Guaraldi's music from "A Charlie Brown Christmas", selections from "The Nutcracker" as well as jazz arrangements of some popular holiday tunes. Stargazing (weather permitting) will follow.

Suggested Donation: $5 Adults, $3 Children Under 12

Visit Custer!

Get a feel for the place and part of our must-see-in-person collection!

NASA TV Public-Education

NASA TV airs a variety of regularly scheduled, pre-recorded educational and public relations programming 24 hours a day on its various channels. The network also provides an array of live programming, such as 24-hour coverage of International Space Station events (spacewalks, media interviews, educational broadcasts), and rocket launches.