🔭 O'Brien Observatory

United States · Americas · 45.18°N, 92.78°W

The O'Brien Observatory (OBO) is an astronomical observatory in the city of Marine on St. Croix, Minnesota, United States, about 35 kilometers northeast of Minneapolis. The observatory is owned and operated by the University of Minnesota and opened in 1968. It has one telescope, a 0.76-meter (30 in) Cassegrain reflector capable of observing at both optical and infrared wavelengths. It is used for primarily for instruction and instrument testing, and occasionally for research purposes.

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Quick facts

Country	United States
Continent / region	Americas
Coordinates (approx.)	45.18°N, 92.78°W · view on map

O'Brien Observatory is located in United States, in Americas.

More observatories in United States

Adolphson Observatory · Allegheny Observatory · Anderson Mesa Station · Angell Hall Observatory · Apache Point Observatory · Apollo Observatory · Arecibo Observatory · Ashton Observatory · Astronaut Memorial Planetarium and Observatory · Astronomical Observatory (University of Illinois Urbana-Champaign).

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