The Dyer Observatory, also known as the Arthur J. Dyer Observatory, is an astronomical observatory owned and operated by Vanderbilt University. Built in 1953, it is located in Brentwood, Tennessee, and is the only university facility not located on the main campus in Nashville. The observatory is named after Arthur J. Dyer, who paid for the observatory's 24-foot (7.3 m)-wide dome, and houses a 24-inch (610 mm) reflecting telescope named for astronomer Carl Seyfert. Today, the observatory primarily serves as a teaching tool; its mission is to interest children in the fields of science and engineering.