Andromeda Galaxy
Date: 15 October 1998
Satellite: ISO
Depicts: M31
Copyright: ESA/ISO/ISOPHOT and M. Haas et al.
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The Andromeda galaxy, one of the closest and best-known companions of our own galaxy, has been hiding from the astronomers' eyes one of its secrets: although it has always been considered as a typical spiral galaxy, it has now been shown to be a spectacular ringed galaxy.
Last Update: 1 September 2019