The Astronomische Gesellschaft is an astronomical society established in 1863 in Heidelberg, the second oldest astronomical society after the Royal Astronomical Society.
In 1882, the Astronomische Gesellschaft founded the Central Bureau for Astronomical Telegrams at Kiel, where it remained until moving to the Østervold Observatory at Copenhagen, Denmark, to be operated there by the Copenhagen University Observatory.
Around the turn of the 20th century the A.G. initiated the most important star catalog of this time, the Astronomische Gesellschaft Katalog (AGK).
The assembly in Gdańsk in August 1939 was the last until a meeting at Göttingen in 1947, when it was re-commenced as Astronomische Gesellschaft in der Britischen Zone. The post-war editorial board consisted of Chairman Albrecht Unsöld (Kiel), Otto Heckmann, J. Larink, B. Straßl, Paul ten Bruggencate, and also Max Beyer representing the amateurs of the society.
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