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Messier 110, also known as NGC 205, is a dwarf elliptical galaxy that is a satellite of the Andromeda Galaxy.[4] M110 contains some dust and hints of recent star formation, which is unusual for dwarf elliptical galaxies in general.[4]

Messier 110[1]
Messier object 110.jpg
M 110
credit: Atlas Image 2MASS/UMass/IPAC-Caltech/NASA/NSF.
Observation data (J2000 epoch)
Right ascension00h 40m 22.1s[3]
Declination+41° 41′ 07″[3]
Helio radial velocity-241
Galactocentric velocity-62
Apparent magnitude (V)8.92[3]
TypeE5 pec[3]
Apparent size (V)21.9 × 11.0 moa[3]
Other designations
NGC 0205,[3] PGC 002429,[3] MCG +07-02-014,[3] IRAS 00376+4124,[3] LEDA 2429
See also: Galaxy, List of galaxies
In this image of the Andromeda Galaxy, Messier 110 is to the bottom-right of the center.



Although Charles Messier never included the galaxy in his list, it was depicted by him, together with M32, on a drawing of the Andromeda galaxy; a label on the drawing indicates that Messier first observed NGC 205 on August 10, 1773.[5] The galaxy was independently discovered by Caroline Herschel on August 27, 1783; her brother William Herschel described her discovery in 1785.[5] The suggestion to assign the galaxy a Messier number was made by Kenneth Glyn Jones in 1967.[6]

A few novae have been detected in this galaxy, including one discovered in 1999 by Johnson and Modjaz,[7] and another detected in 2002, by Nakano and Sumoto. The latter, designated EQ J004015.8+414420, had also been captured in images taken by the Sloan Digital Sky Survey (SDSS) in October, 2002. [8]

Unlike M32, NGC 205 does not (as of 2005) show evidence for a supermassive black hole at its center.[9]

See alsoEdit


  1. ^ A.W. McConnachie; M.J. Irwin; A.M.N. Ferguson; R.A. Ibata; G.F. Lewis; N. Tanvir (2005). "Distances and metallicities for 17 Local Group galaxies". Monthly Notices of the Royal Astronomical Society. 356 (4): 979–997. arXiv:astro-ph/0410489. Bibcode:2005MNRAS.356..979M. doi:10.1111/j.1365-2966.2004.08514.x.
  2. ^ J.L.E. Dreyer; R.W. Sinnott (1988). R.W. Sinnott, ed. NGC 2000.0: The Complete New General Catalogue and Index Catalogues of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 978-0-933346-51-2.
  3. ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 205. Retrieved 2006-11-29.
  4. ^ a b A. Sandage; J. Bedke (1994). Carnegie Atlas of Galaxies. Carnegie Institution of Washington. ISBN 978-0-87279-667-6.
  5. ^ a b K.G. Jones (1991). Messier's Nebulae and Star Clusters (2nd ed.). Cambridge University Press. ISBN 978-0-521-37079-0.
  6. ^ K.G. Jones (1967). "Some New Notes on Messier's Catalogue". Sky & Telescope. 33: 156–158. Bibcode:1967S&T....33..156J.
  7. ^ van den Bergh, S. (2000). "Updated Information on the Local Group". Publications of the Astronomical Society of the Pacific. 112 (770): 529–536. arXiv:astro-ph/0001040. Bibcode:2000PASP..112..529V. doi:10.1086/316548.
  8. ^ "Forum di Astronomia Amatoriale Italiano".
  9. ^ Valluri, M.; Ferrarese, L.; Merritt, D.; Joseph, C.J. (2005). "The Low End of the Supermassive Black Hole Mass Function: Constraining the Mass of a Nuclear Black Hole in NGC 205 via Stellar Kinematics". Astrophysical Journal. 628 (1): 137–152. arXiv:astro-ph/0502493. Bibcode:2005ApJ...628..137V. doi:10.1086/430752.

External linksEdit

Coordinates:   00h 40m 22.1s, +41° 41′ 07″