NGC 2196
| NGC 2196 | |
|---|---|
 NGC 2196 by Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Lepus |
| Right ascension | 06h 12m 09.7s[1] |
| Declination | −21° 48′ 21″[1] |
| Redshift | 0.007735 ± 0.000009 [1] |
| Heliocentric radial velocity | 2,319 ± 3 km/s[1] |
| Distance | 100 ± 7.5 Mly (30.6 ± 2.3 Mpc)[1] |
| Apparent magnitude (V) | 10.9[2] |
| Characteristics | |
| Type | (R':)SA(rs)ab [1] |
| Apparent size (V) | 2.8′ × 2.2′[1] |
| Other designations | |
| UGCA 121, ESO 556-4, MCG -4-15-14, IRAS 06100-2147, PGC 18602 | |
NGC 2196 is an unbarred spiral galaxy in the constellation Lepus. The galaxy lies about 100 million light 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 by William Herschel on November 20, 1784.[3]
NGC 2196 has a bright nucleus surrounded by a large elliptical bulge. 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 a grand design pattern.[6] The outer arms form a pseudoring measuring 1.5 by 1.4 arcminutes. The galaxy is slightly asymmetric.[7]
One transient has been discovered in NGC 2196, PSN J06120295-2149353. It was discovered on 20 January 2014 using the Katzman Automatic Imaging Telescope and upon discovery had an apparent mangitude of 18 in red wavelengths.[8] Its classification is uncertain and could be a supernova or variable star in our galaxy.[9]
NGC 2196 is the foremost galaxy of the NGC 2196 Group, which also includes NGC 2211, and NGC 2212.[10]
References
[edit]- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 2196. Retrieved 6 February 2025.
- ^ "Revised NGC Data for NGC 2196". spider.seds.org. Retrieved 30 March 2024.
- ^ Seligman, Courtney. "NGC 2196 (= PGC 18602)". Celestial Atlas. Retrieved 19 November 2018.
- ^ 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. doi:10.1086/342340.
- ^ Carollo, C. M.; Stiavelli, M.; Mack, J. (July 1998). "Spiral Galaxies with WFPC2. II. The Nuclear Properties of 40 Objects". The Astronomical Journal. 116 (1): 68–84. doi:10.1086/300407.
- ^ 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.
- ^ "ATel #5779: KAIT Discovery and Robotic Follow-up Observations of a Possible Young SN Candidate in NGC 2196: PSN J06120295-2149353". The Astronomer's Telegram. 20 January 2014. Retrieved 10 February 2025.
- ^ "ATel #5783: SALT Spectroscopy of PSN J06120295-2149353 in NGC 2196: Uncertain Classification". The Astronomer's Telegram. 21 January 2014. Retrieved 10 February 2025.
- ^ Makarov, Dmitry; Karachentsev, Igor (21 April 2011). "Galaxy groups and clouds in the local (z~ 0.01) Universe". Monthly Notices of the Royal Astronomical Society. 412 (4): 2498–2520. arXiv:1011.6277. Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x. S2CID 119194025.
External links
[edit]
- NGC 2196 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
