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NGC 4414, a teepical spiral galaxy in the constellation Coma Berenices, is about 55,000 licht-years in diameter an approximately 60 million licht-years away frae Yird

A galaxy is a gravitationally boond seestem o starns, stellar remnants, interstellar gas, dust, an dark matter.[1][2]

References[eedit | eedit soorce]

  1. Sparke & Gallagher III 2000, p. i
  2. Hupp, E.; Roy, S.; Watzke, M. (August 12, 2006). "NASA Finds Direct Proof of Dark Matter". NASA. Retrieved April 17, 2007.