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Size (left) and distance (right) of a few well-known galaxies put to scale. There are an estimated 100 billion galaxies in all of the observable universe. [1] On the order of 100,000 galaxies make up the Local Supercluster, and about 51 galaxies are in the Local Group (see list of nearest galaxies for a complete list).
List of galaxies, general list of galaxies; Galaxies by type. List of spiral galaxies; List of ring galaxies; List of polar-ring galaxies; List of quasars; Galaxies by association. List of largest galaxies; List of nearest galaxies; Satellite galaxies of the Milky Way; Other characteristics. List of galaxies named after people
1989 – Margaret Geller and John Huchra discover the "Great Wall", a sheet of galaxies more than 500 million light years long and 200 million wide, but only 15 million light years thick. 1990 – Michael Rowan-Robinson and Tom Broadhurst discover that the IRAS galaxy IRAS F10214+4724 is the brightest known object in the Universe.
Lists of galaxies. List of galaxies; List of largest galaxies; List of galaxies with richest globular cluster systems; List of nearest galaxies; List of galaxies named after people; List of spiral galaxies; List of polar-ring galaxies; List of ring galaxies; List of quasars; Satellite galaxies. List of satellite galaxies of the Milky Way
The following is a list of NGC objects, that is objects listed in the New General Catalogue (NGC). It is one of the largest comprehensive astronomical catalogues for deep sky objects such as star clusters, nebulae, and galaxies. List of NGC objects (1–1000) List of NGC objects (1001–2000) List of NGC objects (2001–3000)
The astronomical catalogue is composed mainly of star clusters, nebulae, and galaxies. Other objects in the catalogue can be found in the other subpages of the list of NGC objects . The constellation information in these tables is from The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer , [ 1 ...
The list was compiled by Patrick Moore as a complement to the Messier catalogue. [ 1 ] While the Messier catalogue is used by amateur astronomers as a list of deep-sky objects for observation, Moore noted that Messier's list was not compiled for that purpose and excluded many of the sky's brightest deep-sky objects, [ 1 ] such as the Hyades ...
This is a list of largest galaxies known, sorted by order of increasing major axis diameters. The unit of measurement used is the light-year (approximately 9.46 × 10 12 kilometers). Overview