漢堡天文台

1. ^ 1036 Ganymed (1924 TD). Minor Planet Center. [3 March 2020]. 
2. ^ Schmadel, Lutz D. (1036) Ganymed. Dictionary of Minor Planet Names. Springer Berlin Heidelberg. 2007: 89. ISBN 978-3-540-00238-3. doi:10.1007/978-3-540-29925-7_1037. 
3. ^ Browne, Malcolm W. Mathematicians Say Asteroid May Hit Earth in a Million Years. The New York Times. 25 April 1996 [3 March 2020] （英语）. 
4. ^ ^{4.0 4.1 4.2} Telescopes and photographic plates. Hamburg University – Hamburg Observatory. 2011 [3 March 2020]. 
5. ^ Journal for the History of Astronomy. Science History Publications. 2005 （英语）. 
6. ^ Anderson, S. R.; Engels, D. A short history of Hamburg Observatory. Journal of the British Astronomical Association. April 2004, 114: 78–87. Bibcode:2004JBAA..114...78A. ISSN 0007-0297. 

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