Bosscha Observatory was created in 1923.
Johannes Bosscha died in 1911.
Johannes Bosscha was born in 1831.
J. Bosscha has written: 'Christiaan Huygens'
Karel Albert Rudolf Bosscha was born in 1865.
Karel Albert Rudolf Bosscha died in 1928.
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.