NGC 7537
Galaxy in the constellation Pisces
From Wikipedia, the free encyclopedia
NGC 7537 is a spiral galaxy located in the equatorial constellation of Pisces, about 1.5° to the NNW of Gamma Piscium.[7] It was first documented by German-born astronomer William Herschel on Aug 30, 1785. J. L. E. Dreyer described it as, "very faint, considerably small, round, brighter middle, southwestern of 2".[8] This galaxy lies at a distance of approximately 127 Mly (39 Mpc) from the Milky Way,[3] and is a member of the Pegasus I cluster.[4]
| NGC 7537 | |
|---|---|
A Hubble Space Telescope (HST) image of spiral galaxy NGC 7537 core. | |
| Observation data (J2000 epoch) | |
| Constellation | Pisces |
| Right ascension | 23h 14m 34.497s[1] |
| Declination | +04° 29′ 54.02″[1] |
| Redshift | 0.009633[2] |
| Heliocentric radial velocity | 2,888±4 km/s[2] |
| Distance | 127 Mly (39 Mpc)[3] |
| Group or cluster | Pegasus I[4] |
| Apparent magnitude (V) | 13.9[5] |
| Characteristics | |
| Type | Sbc[6] |
| Size | 24 kly (7.5 kpc)[6] |
| Apparent size (V) | 1′.047 × 0′.356[1] (NIR) |
| Other designations | |
| UGC 12442,[5] PGC 70786[5] | |
This object forms a pair with the nearly edge-on barred spiral galaxy NGC 7541, and the two show signs of interaction. NGC 7537 has a curved tidal tail to the northeast with a length of 23 kly (6.9 kpc), while NGC 7541 has two tidal tails. They have a projected separation of 140 kly (44 kpc).[6]
