NGC 7003
Galaxy in the constellation Delphinus
From Wikipedia, the free encyclopedia
NGC 7003 is a spiral galaxy around 220 million light-years from Earth in the constellation Delphinus.[2][1] NGC 7003 has an estimated diameter of 85,000 light-years.[1] The galaxy was discovered by German astronomer Heinrich Louis d'Arrest on August 26, 1864.[3]
| NGC 7003 | |
|---|---|
SDSS image of NGC 7003 | |
| Observation data (J2000 epoch) | |
| Constellation | Delphinus |
| Right ascension | 21h 00m 42.4s[1] |
| Declination | +17° 48′ 18″[1] |
| Redshift | 0.017689[1] |
| Heliocentric radial velocity | 5303 km/s[1] |
| Distance | 222 Mly (68.2 Mpc)[1] |
| Apparent magnitude (V) | 13.76[1] |
| Characteristics | |
| Type | Sbc[1] |
| Size | ~85,600 ly (26.25 kpc) (estimated) |
| Apparent size (V) | 1.1 × 0.8[1] |
| Other designations | |
| IRAS 20584+1736, UGC 11662, MCG +03-53-008, PGC 65887, CGCG 448-027[1] | |
One supernova has been observed in NGC 7003: on May 12, 2011, SN 2011dk (type II, mag. 16.5) was discovered.[4][5][6][7]
The redshift of NGC 7003 places it in a filamentary ridge in the Perseus–Pisces Supercluster.[8] The galaxy is host to a supermassive black hole with an estimated mass of 3.9 × 107 M☉.[9]
