NGC 7648
Galaxy in the constellation Pegasus
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NGC 7648 is a lenticular galaxy in the constellation Pegasus. It was discovered on October 18, 1784 by the astronomer William Herschel but also observed by astronomers Heinrich d'Arrest and Édouard Stephan.[3] The redshift of the galaxy is estimated to be (z) 0.011.[1] This galaxy has also been designated as IC 1486 when it was observed again by the French astronomer Guillaume Bigourdan.[3]
| NGC 7648 | |
|---|---|
NGC 7648 (SDSS DR14) | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 23h 25m 12s[1] |
| Declination | +09° 48′ 37″[1] |
| Redshift | 0.011872[1] |
| Heliocentric radial velocity | 3,559 km/s[1] |
| Distance | 153 Mly |
| Characteristics | |
| Type | S0[1] |
| Size | ~47,100 ly (14.44 kpc) (estimated)[1] |
| Other designations | |
| IC 1486, PGC 71321, MCG +01-59-071, MRK 531, UGC 12575[1] | |
References: [2] | |
The nucleus of the galaxy has been described to shine brightly in ultraviolet rays, thus being listed in the Markarian catalogue as MRK 531.[4]
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