Long Island Sights

Custer Institute

  • 1115 Main Bayview Rd. Map It
  • Southold
  • Observatory/Planetarium

Published 07/23/2015

Fodor's Review

Taking advantage of some of the darkest night skies on Long Island, this observatory is a prime viewing spot for astronomy buffs and star-deprived urbanites. Atop the barnlike structure is a motorized dome with a telescope you can use to track the heavenly view. Clear skies are the best for observing; avoid coming during a full or almost-full moon.

Sight Information


1115 Main Bayview Rd., Southold, New York, 11971, United States

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Sight Details:

  • Free
  • Sat. dusk–midnight

Published 07/23/2015


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