Gotha Observatory was created in 1787.
Saxe-Gotha was created in 1640.
Almanach de Gotha was created in 1763.
Saxe-Gotha-Altenburg was created in 1680.
Haleakala Observatory was created in 1961.
Dearborn Observatory was created in 1889.
Kiso Observatory was created in 1974.
Stellafane Observatory was created in 1924.
Steward Observatory was created in 1916.
Union Observatory was created in 1903.
Erbil Observatory was created in 1973.
Sherwood Observatory was created in 1970.
McKim Observatory was created in 1884.