Leo Triplet

Not to be confused with Leo Cluster or Leo I Group.
Leo Triplet
The Leo Triplet, with M65 (right top), M66 (right bottom) and
NGC 3628 (left). North is to the left.
Observation data (Epoch J2000)
Constellation(s)Leo
Right ascension11h 17m[1][2]
Declination+13° 25′[1][2]
Brightest memberM66[1][2]
Number of galaxies3-5[1][2][3]
Other designations
M66 Group, Arp 317,[4] LGG 231,[1]
NOGG P1 533,[2] NOGG P2 543[2]

The Leo Triplet (also known as the M66 Group) is a small group of galaxies about 35 million light-years away[5] in the constellation Leo. This galaxy group consists of the spiral galaxies M65, M66, and NGC 3628.

  1. ^ a b c d e A. Garcia (1993). "General study of group membership. II – Determination of nearby groups". Astronomy and Astrophysics Supplement. 100: 47–90. Bibcode:1993A&AS..100...47G.
  2. ^ a b c d e f G. Giuricin; C. Marinoni; L. Ceriani; A. Pisani (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal. 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. S2CID 9618325.
  3. ^ Cite error: The named reference nbg was invoked but never defined (see the help page).
  4. ^ H. Arp (1966). "Atlas of Peculiar Galaxies". Astrophysical Journal Supplement. 14: 1–20. Bibcode:1966ApJS...14....1A. doi:10.1086/190147.
  5. ^ VST Looks at the Leo Triplet — and Beyond