Local Group

From Academic Kids

Map of the local group
Map of the local group

The Local Group is the group of galaxies that includes our galaxy, the Milky Way. The group comprises over 30 galaxies, with its gravitational center located somewhere between the Milky Way and the Andromeda Galaxy. The galaxies of the Local Group cover a 10 million light year diameter (see 1 E23 m for distance comparisons). The group belongs to the Virgo Supercluster.

The two most massive members of the group are the Milky Way and the Andromeda Galaxy. These two spirals each have a system of satellite galaxies. The Milky Way's satellite system consists of Sag DEG, Large Magellanic Cloud, Small Magellanic Cloud, Canis Major, Ursa Minor, Draco, Carina, Sextans, Sculptor, Fornax, Leo I, Leo II and Tucana. Andromeda's system comprises M32, M110, NGC 147, NGC 185, And I, And II, And III and And IV. M33, the third largest galaxy in the Local Group may or may not be a companion to the Andromeda galaxy but probably has LGS 3 as a satellite. The other members of the group are gravitationally secluded from these large subgroups.

A member of the Local Group of galaxies, irregular galaxy Sextans A is 10 million light years distant. The bright Milky Way foreground stars appear yellowish in this view. Beyond them lie the stars of Sextans A with  young blue star clusters clearly visible.
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A member of the Local Group of galaxies, irregular galaxy Sextans A is 10 million light years distant. The bright Milky Way foreground stars appear yellowish in this view. Beyond them lie the stars of Sextans A with young blue star clusters clearly visible.

See also

External links

de:Lokale Gruppe et:Kohalik Rhm es:Grupo Local eo:Loka grupo fr:Groupe local it:Gruppo Locale he:הקבוצה המקומית nl:Lokale groep ja:局部銀河群 pl:Grupa Lokalna Galaktyk ru:Местная группа fi:Paikallinen ryhm sv:Lokala galaxhopen

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