what is the called the group of galaxy
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A galaxy group or group of galaxies (GrG) is an aggregation of galaxies comprising about 50 or fewer gravitationally bound members, each at least as luminous as the Milky Way (about 1010 times the luminosity of the Sun); collections of galaxies larger than groups that are first-order clustering are called galaxy ...
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group of galaxy means in which stars planets, astroids are there they are called group of galaxy
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