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NGC 2552

From Wikipedia, the free encyclopedia
Magellanic Spiral galaxy in the constellation Lynx
NGC 2552
SDSS image of NGC 2552
Observation data (J2000epoch)
ConstellationLynx
Right ascension08h 19m 19.58s[1]
Declination50° 00′ 20.8″
Distance22Mly (6.7Mpc)[2]
Characteristics
TypeSA(s)m[2]
Other designations
UGC 4325,[2] PGC 23340

NGC 2552 is aMagellanic spiralgalaxy located some 22[2] millionlight years away. It can be found inconstellation ofLynx. This is a type of unbarreddwarf galaxy, usually with a single spiral arm. It is inclined by 41° to the line of sight from the Earth along aposition angle of 229°.[2] The measured velocity dispersion of the stars in NGC 2552 is relatively low—a mere 19 ± 2km/s.[3] This galaxy forms part of a loose triplet that includesNGC 2541 andNGC 2500, which together belong to theNGC 2841 group.[4]

References

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  1. ^Adelman-McCarthy, J. K.; et al. (March 2007), "The SDSS Photometric Catalog, Release 5",VizieR On-line Data Catalog: II/276,Bibcode:2007yCat.2276....0A.
  2. ^abcdeGarrido, O.; et al. (June 2002), "GHASP: An Hα kinematic survey of spiral and irregular galaxies. I. Velocity fields and rotation curves of 23 galaxies",Astronomy & Astrophysics,387 (3):821–829,arXiv:1304.4176,Bibcode:2002A&A...387..821G,doi:10.1051/0004-6361:20020479,S2CID 122952094.
  3. ^Hunter, Deidre A.; et al. (November 2002), "The Stellar and Gas Kinematics of Several Irregular Galaxies",Astronomy & Astrophysics,580 (1):194–212,arXiv:astro-ph/0207510,Bibcode:2002ApJ...580..194H,doi:10.1086/343080,S2CID 17572211.
  4. ^Ferrarese, Laura; et al. (May 29, 1998), "The HST Key Project on the Extragalactic Distance Scale XII. The Discovery of Cepheids and a New Distance to NGC 2541",The Astrophysical Journal,507 (2):655–690,arXiv:astro-ph/9805365,Bibcode:1998ApJ...507..655F,doi:10.1086/306364,S2CID 204935980.

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