Arp 116

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APG 116, as imaged by the Hubble Space Telescope; M60 to the left and below; NGC4647 to the right and above;

Arp 116 (APG 116) is a pair of interacting galaxies composed of elliptical galaxy Messier 60 and spiral galaxy NGC 4647, located in the Virgo Constellation, lying about 60 million light years away, in the Virgo Cluster, at right ascension 12h 43m 36.1s declination +11° 34′ 02″ .[1][2][3] Interaction between the two galaxies has just begun, with initial findings of tidal interaction being found in 2012.[1] With an apparent separation between the galaxies of 2'.5, the optical discs of the two galaxies overlap.[4]


  1. ^ a b Science Daily, "Odd Galaxy Couple On Space Voyage", 6 September 2012 (accessed 2012-11-11)
  2. ^ NED, "NED results for object ARP 116" (accessed 2012-11-11)
  3. ^ Webb Society. "Webb Society Deep-sky Observer's Handbook: Volume 5: Clusters of Galaxies", Kenneth Glyn Jones, ed.; 1979. ISBN 0894900668 ; pp.57
  4. ^ Carnegie Institution of Washington. "Carnegie Atlas of Galaxies", A. Sandage, J. Bedke; 1994. ISBN 0-87279-667-1

External links[edit]

  • VizieR APG 116 (accessed 2012-11-11)

Coordinates: Sky map 12h 43m 36.1s, +11° 34′ 02″