Uppsala Astronomical Observatory was created in 1741.
Andrushivka Astronomical Observatory was created in 2001.
Indian Astronomical Observatory was created in 2001.
Astronomical Observatory of Capodimonte was created in 1812.
Brera Astronomical Observatory was created in 1764.
Brooks Astronomical Observatory was created in 1964.
Astronomical Observatory of Lisbon was created on 1878-05-06.
National Astronomical Observatory of China was created in 2001.
Astronomical Observatory of the University of the Punjab was created in 1932.
Principia Astronomical Observatory was created on 1998-06-18.
La Plata Astronomical Observatory was created in 1883.
Georgetown University Astronomical Observatory was created in 1843.
Anders Celsius was a Swedish astronomer who is known for inventing the Celsius temperature scale. Celsius also built the Uppsala Astronomical Observatory in 1740, the oldest astronomical observatory in Sweden.