The observatory is located on the property of Union County College on their Cranford, New Jersey campus.

The observatory houses two of the largest telescopes on the East Coast open to the public on a weekly basis.

The East Dome holds a 10-inch f/15 refractor built by AAI members and donated to the college in November 1972.

The West Dome has a 24-inch f/11 Cassegrain reflector purchased and owned by AAI, and installed in October 1974.

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