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The Perseus cluster (Abell 426) is a cluster of galaxies in the constellation Perseus. It has a recession speed of 5,366 km/ s and a diameter of 863 ′ . [ 1 ] It is one of the most massive objects in the known universe , containing thousands of galaxies immersed in a vast cloud of multimillion-degree gas.
NGC 1275 (also known as Perseus A or Caldwell 24) is a type 1.5 Seyfert galaxy [3] located around 237 million light-years away [2] in the direction of the constellation Perseus. NGC 1275 is a member of the large Perseus Cluster of galaxies.
NGC 1259 is a lenticular galaxy [2] located about 243 million light-years away [3] in the constellation Perseus. [4] The galaxy was discovered by astronomer Guillaume Bigourdan on October 21, 1884 [5] and is a member of the Perseus Cluster. [6] [5] A type Ia supernova designated as SN 2008L was discovered in NGC 1259 on January 14, 2008. [7] [8 ...
NGC 1277 is a lenticular galaxy in the constellation of Perseus. It is a member of the Perseus Cluster of galaxies and is located approximately 73 Mpc (megaparsecs) [2] or 220 million light-years from the Milky Way. It has an apparent magnitude of about 14.7. It was discovered on December 4, 1875 by Lawrence Parsons, 4th Earl of Rosse.
NGC 1023, also known as the Perseus Lenticular Galaxy, [3] is a barred lenticular galaxy, a member of the NGC 1023 group of galaxies in the Local Supercluster. Distance measurements vary from 9.3 to 19.7 million parsecs (30 to 64 million light-years). [1] The supermassive black hole at the core has a mass of (4.4 ± 0.5) × 10 7 M ☉. [4]
The Perseus–Pisces Supercluster is one of two dominant concentrations of galaxies (the other being the Local supercluster) in the nearby universe (within 300 million light years). This supercluster also borders a prominent void, the Taurus Void, and is part of the Perseus–Pegasus Filament which stretches for roughly a billion light years. [1]
NGC 1279 is a lenticular galaxy estimated to be 324 million light-years away from the Milky Way [3] in the constellation Perseus. [4] It has diameter of about 110,000 ly, [3] and is a member of the Perseus Cluster. [5] [6] It was discovered on December 12, 1876, by astronomer John Louis Emil Dreyer. [6]
NGC 1281 is a compact [3] elliptical galaxy [4] located about 200 million light-years away [3] in the constellation Perseus. [5] NGC 1281 was discovered by astronomer John Dreyer on December 12, 1876. [6] It is a member of the Perseus Cluster. [7] [6] Like NGC 1277 and NGC 1271, NGC 1281 is a candidate "relic galaxy". [8]