NGC 2552

NGC 2552
Observation data (J2000 epoch)
Constellation Lynx
Right ascension 08h 19m 19.58s[1]
Declination 50° 00′ 20.8″
Distance 22 Mly (6.7 Mpc)[2]
Characteristics
Type SA(s)m[2]
Other designations
UGC 4325[2]

NGC 2552 is a Magellanic spiral galaxy located some 22[2] million light years away in the faint northern constellation of Lynx. This is a type of unbarred dwarf galaxy, usually with a single spiral arm. It is inclined by 41° to the line of sight from the Earth along a position angle of 229°.[2] The measured velocity dispersion of the stars in NGC 2552 is relatively low—a mere 19 ± 2 km/s.[3] This galaxy forms part of a loose triplet that includes NGC 2541 and NGC 2500, which together belong to the NGC 2841 group.[4]

References

  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. 1 2 3 4 5 Garrido, 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: 821–829, Bibcode:2002A&A...387..821G, arXiv:1304.4176 Freely accessible, doi:10.1051/0004-6361:20020479.
  3. ↑ Hunter, Deidre A.; et al. (November 2002), "The Stellar and Gas Kinematics of Several Irregular Galaxies", Astronomy & Astrophysics, 580 (1): 194–212, Bibcode:2002ApJ...580..194H, arXiv:astro-ph/0207510 Freely accessible, doi:10.1086/343080.
  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, Bibcode:1998ApJ...507..655F, arXiv:astro-ph/9805365 Freely accessible, doi:10.1086/306364.


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