| NGC 2937 | |
|---|---|
.jpg) | |
| Observation data (J2000epoch) | |
| 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 anelliptical galaxy located in theconstellation Hydra. Its velocity relative to the cosmic microwave background is 105.1 ± 7.4km/s, which corresponds to a Hubble distance of 105.1 ± 7.4Mpc (~343million ly).[1] NGC 2937 was discovered by German astronomerAlbert Marth in 1864.
NGC 2937 is in a strong gravitational interaction with its neighborNGC 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 inHalton Arp'sAtlas 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 theCatalog of Collisional Ring Galaxies by Madore, Nelson and Petrillo.[5]
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