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Andromeda's borders contain many visible distant galaxies. [11] The most famous deep-sky object in Andromeda is the spiral galaxy cataloged as Messier 31 (M31) or NGC 224 but known colloquially as the Andromeda Galaxy for the constellation. [53]
NGC 999 is an intermediate spiral galaxy located in the constellation Andromeda about 195 million light-years from the Milky Way. [3] It was discovered by French astronomer Edouard Stephan on 8 December 1871. [5]
NGC 317 is a pair of interacting galaxies, consisting of a lenticular galaxy NGC 317A (also designated as PGC 3442) and a spiral galaxy NGC 317B (also designated as PGC 3445), in the constellation Andromeda. It was discovered on October 1, 1885 by Lewis Swift. [2]
a variable star in the constellation of Andromeda. It is classified as a semiregular variable pulsating giant star, and varies from an apparent visual magnitude of 14.5 at minimum brightness to a magnitude of 9.9 at maximum brightness, with a period of approximately 238.3 days. [17] [18] Y And: 10112: 01 h 39 m 36.89 s +39° 20′ 35″ 10.39 ...
NGC 891 (also known as Caldwell 23, the Silver Sliver Galaxy, and the Outer Limits Galaxy) is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda. It was discovered by William Herschel on October 6, 1784. [3] The galaxy is a member of the NGC 1023 group of galaxies in the Local Supercluster.
NGC 753 is a spiral galaxy [3] located 220 million light-years away [2] in the constellation Andromeda.The galaxy was discovered by astronomer by Heinrich d'Arrest on September 16, 1865 [4] and is a member of Abell 262.
NGC 85 is an interacting spiral or lenticular galaxy estimated to be about 200 million light-years away in the constellation of Andromeda. It was discovered by Ralph Copeland in 1873 and its apparent magnitude is 15.7. [4] The galaxy appears to be interacting with the companion spiral IC 1546.
NGC 76 is a lenticular galaxy estimated to be about 320 million light-years away in the constellation of Andromeda. It was discovered by Guillaume Bigourdan from France in 1884 and its magnitude is 13.1. [4]