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 died in 1928.
Karel Albert Rudolf Bosscha was born in 1865.
Erbil Observatory was created in 1973.
Steward Observatory was created in 1916.
Mead Observatory was created in 2001.
Goodsell Observatory was created in 1886.
Cloudcroft Observatory was created in 1962.
Foothill Observatory was created in 1965.
Union Observatory was created in 1903.