Right ascension 11 03 53.95 Distance 4.25723778 × 10^24 m Discoverer Nicholas Mayall | Declination +40° 50′ 59.90″ | |
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Similar Tadpole Galaxy, UGC 8335, NGC 6751, Cartwheel Galaxy, Arp 272 |
Mayall s object galaxy tours
Mayall's Object (also classified under the Atlas of Peculiar Galaxies as Arp 148) is the result of two colliding galaxies located 500 million light years away within the constellation of Ursa Major. It was discovered by American astronomer Nicholas U. Mayall of the Lick Observatory on 13 March 1940, using the Crossley reflector. When first discovered, Mayall's Object was described as a peculiar nebula, shaped like a question mark. Originally theorized to represent a galaxy reacting with the intergalactic medium, it is now thought to represent the collision of two galaxies, resulting in a new object consisting of a ring-shaped galaxy with a tail emerging from it. It is thought that the original collision between the two original galaxies created a shockwave that initially drew matter into the center which then formed the ring.