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The Principal Galaxies Catalogue ( PGC) is an astronomical catalog published in 1989 that lists B1950 and J2000 equatorial coordinates and cross-identifications for 73,197 galaxies. It is based on the Lyon-Meudon Extragalactic Database (LEDA), which was originally started in 1983. [ 2] 40,932 coordinates (56%) have standard deviations smaller ...
Guardians of the Galaxy images. This category collects images that are scans, screen captures, photos, and/or illustrations of the Guardians of the Galaxy and related characters and intellectual properties for which Marvel Comics holds the copyright and/or trademark. Images of related comic book covers, as published, can be found in Category ...
Named after its discoverer, Eric Lindsay, his professor Harlow Shapley, and its nature as a ring galaxy . The ring is the result of collision with another galaxy. Little Sombrero Galaxy. Pegasus. Named after its similarity to the Sombrero Galaxy . Malin 1. Coma Berenices. Discovered and named by David Malin .
Lists of galaxies. Look up galaxy in Wiktionary, the free dictionary. A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity. The word is derived from the Greek galaxias, literally 'milky', a reference to the Milky Way galaxy that contains the Solar System.
1995 — First detection of small-scale structure in the cosmic microwave background. 1995 — Hubble Deep Field survey of galaxies in field 144 arc seconds across. 1998 — The 2dF Galaxy Redshift Survey maps the large-scale structure in a section of the Universe close to the Milky Way. 1998 — The Hubble Deep Field South is compiled.
The following outline is provided as an overview of and topical guide to galaxies: Galaxies – gravitationally bound systems of stars, stellar remnants, interstellar gas, dust, and dark matter. The word galaxy is derived from the Greek galaxias (γαλαξίας), literally "milky", a reference to the Milky Way. Galaxies range in size from ...
NGC 6946, sometimes referred to as the Fireworks Galaxy, is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus. Its distance from Earth is about 25.2 million light-years or 7.72 megaparsecs, [ 2] similar to the distance of ...
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