Astronomy:NGC 7648
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| 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] |
| Helio 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] | |
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]
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]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NED Search results for NGC 7648". https://ned.ipac.caltech.edu/byname?objname=NGC+7648&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1.
- ↑ "NGC 7648 - Lenticular Galaxy in Pegasus". https://theskylive.com/sky/deepsky/ngc7648-object.
- ↑ 3.0 3.1 "New General Catalog Objects: NGC 7600 - 7649". https://cseligman.com/text/atlas/ngc76.htm#7648.
- ↑ "Data from Revised NGC and IC catalogue by Wolfgang Steinicke, NGC 7600 - 7699". https://astrovalleyfield.com//AstronomieCompl/NGC%20et%20autres/WolfgangS/N7600_exc_web.htm.
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