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.
Saturday Night Observing: Open 7pm-Midnight
Contact a human: Call, E-mail, and Visit
General Saturday night observing:
No reservations ~ No Appointments,
and no guarantees as far as the weather!
Suggested donation of $5 adults and $3 children.
Some special events (concerts, lectures, etc) do have fees and require registration.
We can only remain open due to your generous donations and by becoming a member.
As an all-volunteer organization, we can only
guarantee to check phone messages when we are there Saturday
The Custer Observatory's phone number is:
We are located at
|Our mailing address is:
PO Box 1204
Southold, New York 11971
David van Popering, Vice President:
Barbara Lebkuecher, Treasurer:
Anne Spooner, Finance Chair:
Charles Cardona Jr.:
In the map below, enter where you are coming from and find out how to get here!