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Sky & instruments

Observatories

Griffith Observatory, Kitt Peak, Mauna Kea: domes on dark, high ground. Some have a visitor centre and evenings at the telescope, others are research sites closed to the public – check the website first.

251
observatories in this area
52
states/provinces with entries
1830
oldest built

By state

Alabama 2
Alaska 1
Alberta 2
Arizona 24
Arkansas 1
British Columbia 2
California 19
Colorado 5
Connecticut 5
Delaware 1
District of Columbia 3
Florida 4
Georgia 7
Hawaii 9
Idaho 1
Illinois 4
Indiana 7
Iowa 5
Kansas 4
Louisiana 2
Maine 2
Maryland 2
Massachusetts 12
Michigan 11
Minnesota 4
Mississippi 4
Missouri 4
Nebraska 3
New Brunswick 1
New Hampshire 2
New Jersey 2
New Mexico 9
New York 13
North Carolina 5
Ohio 9
Oklahoma 4
Ontario 7
Oregon 2
Pennsylvania 9
Quebec 1
Rhode Island 3
South Carolina 2
South Dakota 2
Tennessee 5
Texas 3
Utah 2
Vermont 1
Virginia 5
Washington 4
West Virginia 1
Wisconsin 6
Wyoming 3

Good to know

  • The trip is worth it by day too: the domes sit on mountains, and the view from up there is often the second picture.
  • Stars need a tripod and a new moon. TripPhoto shows the moon phase for every day of your trip.
  • White light ruins the observing – use red light only on the grounds and switch the flash off.

Sources: Wikidata (CC0), Photos: Wikimedia Commons (author and licence per image) · Last checked on 19 September 2026

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