Welcome to the Custer Institute & Observatory


Long Island's oldest public observatory (est. 1927)

You can support Custer through General DonationsBuilding & Restoration Projects, and by becoming a Member!
All observing is done out in the open air, under the stars. Dress appropriately.

Moon Phase  |  Weather

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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, exhibit room, and gift shop. Frequent lectures, classes, concerts, art exhibits, and other special events.

SKY OBSERVING

Weekly - Saturday Nights
8 pm - Midnight
Volunteer staff provide guided tours of the sky.

Fiddlers Green

March 15, 2025

6 pm 

Fiddlers Green has been a favorite at Long Island venues for years. Their performance tonight will feature charming Irish folk songs and tunes, from lively to poignant, played on traditional instruments. The 5-piece band features: Larry Moser (hammered dulcimer, concertina, cittern), Patrick O’Rourke (guitar), Mary Nagin (fiddle), Max Rowland (banjo, concertina), and Maria Fairchild (guitar, banjo). Patrick's classic Irish tenor voice brings these songs to life, providing the emotional depth and melodic nuance characteristic of traditional Irish folk music. Many of these songs have great choruses which the band welcomes the audience to join in singing.

In Irish folk tradition, "Fiddler's Green" refers to a mythical afterlife paradise specifically for sailors, where there is endless music, dancing, good food, and drink, essentially a sailor's heaven, with the "fiddle" representing the constant lively music playing there; it's a place of perpetual joy and merriment.

Following the concert, Observatory staff will provide guided tours of the night sky (weather permitting) through our many telescopes on site, including the apochromatic Zerochromat telescope in our historic observation dome.

$15 Adult, $10 Children Under 16, $8 Observatory Member. Due to limited space, registration is strongly encouraged. Once "sold out", walk-ins are invited to attend with standing-room only.

Registration/Ticket Portal 
register