NGC 78 explained

NGC 78
Epoch:J2000
Constellation Name:Pisces
Ra:[1]
Z:0.018283[2]
H Radial V:5079 km/s
Type:SB0/a?(r)
Appmag B:14.5[3]
Size V:1.3 × 0.897[4]
Names:NGC 78A: UGC 193, MGC+00-02-004, PGC 1306
NGC 78B: UGC 194, MGC+00-02-005, PGC 1309

NGC 78 is a pair of galaxies in the constellation Pisces.[2] NGC 78A, which is the more southern galaxy, is a barred spiral galaxy.[2] NGC 78B, which is the more northern galaxy, is an elliptical galaxy.[5] Although the designations NGC 78A and 78B are used today, the designation NGC 78 was formerly used mainly for the northern galaxy.

Discovery

NGC 78 was discovered no later than 1876 by Carl Frederick Pechüle.[6] It was described as "very faint, small, round" by John Louis Emil Dreyer, the compiler of the New General Catalogue.[6] Because the two galaxies have different recessional velocities, the two galaxies are most likely not interacting.[6]

Notes and References

  1. 10.1086/498708 . Skrutskie . Michael F. . Cutri . Roc M. . Stiening . Rae . Weinberg . Martin D. . Schneider . Stephen E. . Carpenter . John M. . Beichman . Charles A. . Capps . Richard W. . Chester . Thomas . Elias . Jonathan H. . Huchra . John P. . Liebert . James W. . Lonsdale . Carol J. . Monet . David G. . Price . Stephan . Seitzer . Patrick . Jarrett . Thomas H. . Kirkpatrick . J. Davy . Gizis . John E. . Howard . Elizabeth V. . Evans . Tracey E. . Fowler . John W. . Fullmer . Linda . Hurt . Robert L. . Light . Robert M. . Kopan . Eugene L. . Marsh . Kenneth A. . McCallon . Howard L. . Tam . Robert . Van Dyk . Schuyler D. . Wheelock . Sherry L. . The Two Micron All Sky Survey (2MASS) . The Astronomical Journal . 1 February 2006 . 131 . 2 . 1163–1183 . 2006AJ....131.1163S . 18913331 . 0004-6256 . free .
  2. Web site: NED results for object NGC 0078A. National Aeronautics and Space Administration / Infrared Processing and Analysis Center. 6 September 2017.
  3. NGC 78A. 6 September 2017.
  4. POSS1 103a-O values used.
  5. NGC 78B. 6 September 2017.
  6. Web site: New General Catalog Objects: NGC 50 - 99. cseligman.com. 6 September 2017.

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