NGC 1222 explained

NGC 1222
Epoch:	J2000
Constellation Name:	Eridanus
Ra:	^[1]
Z:	0.008079^[2]
H Radial V:	2422 km/s
Dist Ly:	33.3Mpc^[3]
Type:	S0^− pec
Size:	9890pc
Appmag V:	12.5
Appmag B:	13.5^[4]
Size V:	1.1 × 0.9
Notes:	Starburst galaxy
Names:	Mrk 603, MCG-01-09-005, PGC 11774^[5]

NGC 1222 is an early-type lenticular galaxy located in the constellation of Eridanus. The galaxy was discovered on 5 December 1883 by the French astronomer Édouard Stephan. John Louis Emil Dreyer, the compiler of the New General Catalogue, described it as a "pretty faint, small, round nebula" and noted the presence of a "very faint star" superposed on the galaxy.^[6]

NGC 1222's morphological type of S0⁻ would suggest that it should have a mostly smooth profile and a very dull appearance. However, the galaxy was imaged by the Hubble Space Telescope in 2016, and the image showed that there were several bright blue star forming regions, as well as dark reddish areas of interstellar dust. NGC 1222 is currently interacting with and swallowing two dwarf galaxies that are supplying the gas and dust needed to become a starburst galaxy.^[7]

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 1222. 21 February 2017. National Aeronautics and Space Administration / Infrared Processing and Analysis Center.
3. The ATLAS^3D project – I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria. Cappellari, Michele. etal. Monthly Notices of the Royal Astronomical Society. 413. 2. 813–836. 2011. 2011MNRAS.413..813C. 10.1111/j.1365-2966.2010.18174.x. 1012.1551. 15391206.
4. Web site: Revised NGC Data for NGC 1222. seds.org. Frommert, Hartmut. 21 February 2017.
5. NGC 1222. 21 February 2017.
6. Web site: NGC Objects: NGC 1200–1249. 21 February 2017. cseligman.com. Seligman, Courtney.
7. https://www.wis-tns.org/object/2024any Transient Name Server entry for SN 2024any.
8. Web site: A greedy giant | ESA/Hubble|website=www.spacetelescope.org|date=2016|access-date=21 February 2017}}

   One supernova

   ] has been observed in NGC 1222: SN 2024any (type Ia, mag. 17.59).^[7]

   See also

   • NGC 1275, another starburst galaxy

   External links

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