NGC 4630 is an irregular galaxy[2] located about 54 million light-years away[3] in the constellation of Virgo.[4] NGC 4630 was discovered by astronomer William Herschel on February 2, 1786.[2] NGC 4630 is part of the Virgo II Groups[5] which form a southern extension of the Virgo Cluster.[6]

See also

References

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 4630. Retrieved 2017-09-10.
  2. ^ a b "New General Catalog Objects: NGC 4600 - 4649". cseligman.com. Retrieved 2017-09-03.
  3. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-09-12.
  4. ^ Rojas, Sebastián García. "Galaxy NGC 4630 - Galaxy in Virgo Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-09-12.
  5. ^ Tully, R. B. (June 1982). "The Local Supercluster". The Astrophysical Journal. 257: 389–422. Bibcode:1982ApJ...257..389T. doi:10.1086/159999. ISSN 0004-637X.
  6. ^ "The Virgo II Groups". www.atlasoftheuniverse.com. Retrieved 2018-04-02.


Allikas: https://en.wikipedia.org/wiki/NGC_4630
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