NGC 2937

NGC 2937
NGC 2937 (bottom) and NGC 2936 (center)
Observation data (J2000 epoch)
ConstellationHydra
Right ascension09h 37m 45s
Declination+02° 44′ 50″
Distance∼343 million ly
Apparent magnitude (V)13.66
Apparent magnitude (B)14.6
Surface brightness22.84 mag/arcsec²
Characteristics
TypeE3
Other designations
ARP 142,

PGC 27423, UGC 5131, MCG 1-25-6, CGCG 35-15, VV 316,

NPM1G +02.0225

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 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

References

  1. ^ "By Name | NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2024-07-03.
  2. ^ "APOD: 2017 February 6 - The Porpoise Galaxy from Hubble". apod.nasa.gov. Retrieved 2024-07-03.
  3. ^ "New General Catalog Objects: NGC 2900 - 2949". cseligman.com. Retrieved 2024-07-03.
  4. ^ "New General Catalog Objects: NGC 2900 - 2949". cseligman.com. Retrieved 2024-07-03.
  5. ^ Madore, Barry F.; Nelson, Erica; Petrillo, Kristen (2009-03-25). "ATLAS AND CATALOG OF COLLISIONAL RING GALAXIES". The Astrophysical Journal Supplement Series. 181 (2): 572–604. arXiv:0902.4629. doi:10.1088/0067-0049/181/2/572. ISSN 0067-0049.

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.


Stub icon

This elliptical galaxy article is a stub. You can help Wikipedia by expanding it.