NGC 7003

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]

See also

• NGC 1300
• List of NGC objects (7001–7840)