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The Milky Way galaxy is a member of an association named the Local Group, a relatively small group of galaxies that has a diameter of approximately one megaparsec. The Milky Way and the Andromeda Galaxy are the two brightest galaxies within the group; many of the other member galaxies are dwarf companions of these two. [176]
Europass has produced an XML vocabulary to describe the information contained in the CV and Language Passport. [4] A Europass CV or Language Passport can be saved in Europass XML format or PDF format with the XML attached. Both formats can be imported into the Europass online editors or any other system that understands the Europass XML ...
BCG – (celestial object) Blue compact galaxy, another name for a blue compact dwarf, also bright central galaxy; BCG – (celestial object) Brightest Cluster Galaxy, the brightest galaxy in a cluster of galaxies; BCVS – (catalog) Bibliographic Catalogue of Variable Stars; BD – (catalog) Bonner Durchmusterung; BD – (celestial object ...
The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31, M31, and NGC 224. Andromeda has a D 25 isophotal diameter of about 46.56 kiloparsecs (152,000 light-years) [8] and is approximately 765 kpc (2.5 million light-years) from ...
In Western culture, the name "Milky Way" is derived from its appearance as a dim un-resolved "milky" glowing band arching across the night sky. The term is a translation of the Classical Latin via lactea, in turn derived from the Hellenistic Greek γαλαξίας, short for γαλαξίας κύκλος (galaxías kýklos), meaning "milky circle".
A dwarf galaxy is a small galaxy composed of about 1000 up to several billion stars, as compared to the Milky Way's 200–400 billion stars. [1] The Large Magellanic Cloud, which closely orbits the Milky Way and contains over 30 billion stars, [2] is sometimes classified as a dwarf galaxy; others consider it a full-fledged galaxy. Dwarf ...
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The obscured dwarf galaxy PGC 39058 Hubble image of the elliptical galaxy PGC 6240. [1]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.