NGC 2937 is an elliptical galaxy located in the constellation Hydra. Its velocity relative to the cosmic microwave background is 105.1 ± 7.4 km/s, which corresponds to a Hubble distance of 105.1 ± 7.4 Mpc (∼343 million ly).[1] NGC 2937 was discovered by German astronomer Albert Marth in 1864.
| NGC 2937 | |
|---|---|
.jpg) | |
| Observation data (J2000 epoch) | |
| Constellation | Hydra |
| Right ascension | 09h 37m 45s |
| Declination | +02° 44’ 50” |
| Distance | ∼343 million ly |
| Apparent magnitude (V) | 13.66 |
| Apparent magnitude (B) | 14.6 |
| Surface brightness | 22.84 mag/arcsec² |
| Characteristics | |
| Type | E3 |
| Other designations | |
| ARP 142, PGC 27423,UGC 5131,MCG 1-25-6,CGCG 35-15,VV 316, NPM1G +02.0225 | |
NGC 2937 is in a strong gravitational interaction with its neighbor NGC 2936, a peculiar spiral galaxy . This interaction has given the latter an appearance that is far from that of a spiral galaxy. The shape of NGC 2936 has earned it the nickname of the "porpoise galaxy".[2]
Together, these two galaxies appear in Halton Arp 's Atlas of Peculiar Galaxies under the code Arp 142.[3] Halton Arp uses them as an example from an elliptical galaxy.[4] This pair of galaxies also appears in the Catalog of Collisional Ring Galaxies by Madore, Nelson and Petrillo.[5]
See also
External links
References
Sources
- Tully, R. Brent (2015-04-28). "GALAXY GROUPS: A 2MASS CATALOG". The Astronomical Journal. 149 (5): 171. arXiv:1503.03134. doi:10.1088/0004-6256/149/5/171. ISSN 1538-3881.
- Gil de Paz, Armando; Boissier, Samuel; Madore, Barry F.; Seibert, Mark; Joe, Young H.; Boselli, Alessandro; Wyder, Ted K.; Thilker, David; Bianchi, Luciana; Rey, Soo‐Chang; Rich, R. Michael; Barlow, Tom A.; Conrow, Tim; Forster, Karl; Friedman, Peter G.; Martin, D. Christopher; Morrissey, Patrick; Neff, Susan G.; Schiminovich, David; Small, Todd; Donas, Jose; Heckman, Timothy M.; Lee, Young‐Wook; Milliard, Bruno; Szalay, Alex S.; Yi, Sukyoung (2007). "The GALEX Ultraviolet Atlas of Nearby Galaxies". The Astrophysical Journal Supplement Series. 173 (2): 185–255. arXiv:astro-ph/0606440. doi:10.1086/516636. ISSN 0067-0049.
- Gottlieb S. (May 2017). "Galaxies in Collision". Sky & Telescope: 28–29. ISSN 0037-6604.