NGC 2196 is anunbarred spiral galaxy in the constellationLepus. The galaxy lies about 100 millionlight years away from Earth based on redshift independent methods, which means, given its apparent dimensions, that NGC 2196 is approximately 85,000 light years across.[1] It was discovered byWilliam Herschel on November 20, 1784.[3]
NGC 2196 has a bright nucleus surrounded by a large ellipticalbulge. Around the bulge lies a low-surface-brightness disk.[4] Spiral arms are visible in the central 30 arcseconds of the disk.[5] The disk has tightly wound spiral arms and the outer arms have agrand design pattern.[6] The outer arms form a pseudoring measuring 1.5 by 1.4 arcminutes. The galaxy is slightly asymmetric.[7]
Onetransient has been discovered in NGC 2196, PSN J06120295-2149353. It was discovered on 20 January 2014 using theKatzman Automatic Imaging Telescope and upon discovery had an apparent magnitude of 18 in red wavelengths.[8] Its classification is uncertain and could be asupernova orvariable star in our galaxy.[9]
NGC 2196 is the foremost galaxy of the NGC 2196 Group, which also includesNGC 2211, andNGC 2212.[10]
^Eskridge, Paul B.; Frogel, Jay A.; Pogge, Richard W.; Quillen, Alice C.; Berlind, Andreas A.; Davies, Roger L.; DePoy, D. L.; Gilbert, Karoline M.; Houdashelt, Mark L.; Kuchinski, Leslie E.; Ramirez, Solange V.; Sellgren, K.; Stutz, Amelia; Terndrup, Donald M.; Tiede, Glenn P. (November 2002). "Near-Infrared and Optical Morphology of Spiral Galaxies".The Astrophysical Journal Supplement Series.143 (1):73–111.arXiv:astro-ph/0206320.Bibcode:2002ApJS..143...73E.doi:10.1086/342340.
^Sandage, A., Bedke, J. (1994),The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
^de Vaucouleurs, Gerard Henri; de Vaucouleurs, Antoinette; Shapley, Harlow (1964).Reference catalogue of bright galaxies. Austin: University of Texas Press.Bibcode:1964rcbg.book.....D.
