NGC 2366

NGC 2366
GALEX image of NGC 2366
Observation data (J2000 epoch)
ConstellationCamelopardalis
Right ascension7h 28m 54.6s[1]
Declination+69° 12′ 57″[1]
Redshift80 ± 1 km/s[1]
Distance10 million light-years[2]
Apparent magnitude (V)11.4[1]
Characteristics
TypeIB(s)m [1]
Apparent size (V)8.1′ × 3.3′[1]
Notable featuresThe southern part of NGC 2366 is called Markarian 71.
Other designations
UGC 3851, PGC 21102[1]
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NGC 2366 is a Magellanic barred irregular dwarf galaxy located in the constellation Camelopardalis.[3][4]

There has been confusion about the various components of NGC 2366 and its neighbouring galaxy NGC 2363.[3] At the southern end of NGC 2366 is the large, luminous HII region known as Markarian 71 (Mrk 71).[3]

To the west of Mrk 71 is another dwarf galaxy NGC 2363 which is interacting with NGC 2366.[5] Corwins' notes remarks that there are two galaxies with two NGC numbers clearly attached to each one. "We shall just have to get used to calling the HII region "Markarian 71" (or one of its other names) since it is not N2363 as we've thought all these years."[5]

Within the region known as Mrk 71, there are two super star clusters (SSC) which are named 'A' and 'B' or 'Knot A' and 'Knot B'.[3][6]

Other names for the above components include: NGC 2366-I, NGC 2366-II, NGC 2366-III, NGC2366-A, NGC 2366-B, NGC 2366-C, NGC 2363-A, NGC 2363-B.[3]

NGC 2366 is an outlying member of the M81 Group.[7]

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 2366. Retrieved 2007-04-08.
  2. ^ "Hubble Observes a Dwarf Galaxy with a Bright Nebula". ESA/Hubble Press Release. Retrieved 10 May 2012.
  3. ^ a b c d e G. Micheva; M.S. Oey; A.E. Jaskot; B.L. James (August 2017). "Mrk 71/NGC 2366: The Nearest Green Pea Analog". The Astrophysical Journal. 845 (2): 13. arXiv:1704.01678. Bibcode:2017ApJ...845..165M. doi:10.3847/1538-4357/aa830b. S2CID 119049347.
  4. ^ G. de Vaucouleurs; A. de Vaucouleurs; H.G. Corwin; R.J. Buta; G. Paturel; P. Fouque (1991). Third Reference Catalogue of Bright Galaxies. Volume I: Explanations and references. Volume II: Data for galaxies between 0h and 12h. Volume III: Data for galaxies between 12h and 24h. Springer, New York. p. 2091. Bibcode:1991rc3..book.....D. ISBN 978-0-387-97552-8.
  5. ^ a b H.G. Corwin (2006). "Historical Notes: NGC 2000 through NGC 2999". Archived from the original on 4 March 2016. Retrieved 29 October 2017.
  6. ^ R.M. Gonzalez-Delgado; E. Perez; G. Tenorio-Tagle; et al. (1994). "Violent star formation in NGC 2363" (PDF). The Astrophysical Journal. 437: 239–261. Bibcode:1994ApJ...437..239G. doi:10.1086/174992. hdl:10486/13452.
  7. ^ Karachentsev, I.D.; Sharina, M.E.; Dolphin, A.E.; Grebel, E.K. (2003). "Distances to nearby galaxies around IC 342". Astronomy & Astrophysics. 408 (1): 111–118. Bibcode:2003A&A...408..111K. doi:10.1051/0004-6361:20030912. ISSN 0004-6361.