NGC 7457
Galaxy in the constellation Pegasus
From Wikipedia, the free encyclopedia
NGC 7457 is an unbarred lenticular galaxy in the constellation Pegasus. NGC 7457 is its New General Catalogue designation. It was discovered by the astronomer William Herschel on 12 September 1784.[4]
Right ascension23h 00m 59.934s[1]
Declination+30° 08′ 41.79″[1]
Heliocentric radial velocity812 km/s[2]
| NGC 7457 | |
|---|---|
SDSS image of NGC 7457 | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 23h 00m 59.934s[1] |
| Declination | +30° 08′ 41.79″[1] |
| Heliocentric radial velocity | 812 km/s[2] |
| Distance | 43 Mly (13.2 Mpc)[2] |
| Apparent magnitude (V) | 11.87[3] |
| Apparent magnitude (B) | 11.04[3] |
| Characteristics | |
| Type | SA0−(rs)?[1] |
| Other designations | |
| UGC 12306, MCG +05-54-026, PGC 70258[3] | |
NGC 7457 is estimated to be about 43 million light-years (13.2 megaparsecs) away from the Sun.[2] There are about 201 globular clusters in the galaxy.[2] The core of NGC 7457 is surprisingly bright and compact, with many stars.[5]
Gallery
2MASS image of NGC 7457
Hubble Space Telescope image of NGC 7457
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