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This is the galaxy group that our galaxy belongs to. Nearest neighbouring galaxy group IC 342/Maffei Group: Most distant proto-cluster A2744z7p9OD: z=7.88 [23] Nearest proto-cluster Most distant massive proto-cluster z66OD: z=6.585 At time of discovery in 2019, the object had 12 members, including Himiko. [24] [25] [26] Least massive galaxy ...
In the 1980s, the Lyons Groups of Galaxies listed 485 galaxy groups with 3,933 member galaxies. Galaxy Zoo is a project aiming at a more comprehensive list: launched in July 2007, it has classified over one million galaxy images from The Sloan Digital Sky Survey, The Hubble Space Telescope and the Cosmic Assembly Near-Infrared Deep ...
Local Group: Largest Galaxy in the Local Group (The Milky Way is the second largest), with at least 19 satellite galaxies. Barred spiral galaxy. 152,000 ly 87 Pegasus Dwarf Spheroidal (Andromeda VI) dSph [55] 2.55 [54] 0.78 −10.80 [7] 14.05 [1] Local Group: Satellite of Andromeda [7] 88 Perseus I (Andromeda XXXIII) 2.560 0.785 [65] −10.3 ...
The Local Group is the galaxy group that includes the Milky Way, where Earth is located. It has a total diameter of roughly 3 megaparsecs (10 million light-years ; 9 × 10 19 kilometres ), [ 1 ] and a total mass of the order of 2 × 10 12 solar masses (4 × 10 42 kg). [ 2 ]
Four of the seven members of galaxy group HCG 16 [1]. A galaxy group [2] or group of galaxies [3] (GrG [4]) is an aggregation of galaxies comprising about 50 or fewer gravitationally bound members, each at least as luminous as the Milky Way (about 10 10 times the luminosity of the Sun); collections of galaxies larger than groups that are first-order clustering are called galaxy clusters. [5]
List of Solar System objects most distant from the Sun; List of Solar System objects by size; Lists of geological features of the Solar System; List of natural satellites (moons) Lists of small Solar System bodies; Lists of comets; List of meteor showers; Minor planets. List of minor planets. List of exceptional asteroids; List of minor planet ...
The spread of velocities for the individual galaxies is about 150 km/s. However, this definition should be used as a guide only, as larger and more massive galaxy systems are sometimes classified as galaxy groups. [4] Groups are the most common structures of galaxies in the universe, comprising at least 50% of the galaxies in the local universe.
The Local Group is located on the outer edge of the Virgo Supercluster. [42] [43] Laniakea Supercluster: 160 Mpc 4.94×10 21: A group connected with the superclusters of which the Local Group is a part. Comprises roughly 300 to 500 galaxy groups and clusters, centred on the Great Attractor in the Hydra–Centaurus Supercluster. [44] [45] [46] [47]