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.
Morris Observatory was created in 1973.
Macfarlane Observatory was created in 1757.
Moore Observatory was created in 1978.
Behlen Observatory was created in 1972.
Jura Observatory was created in 1993.
Detroit Observatory was created in 1854.
Sphinx Observatory was created in 1937.