| 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] | |
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]
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]
- ^ a b c d e f g h i j k "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-04-16.
- ^ Rojas, Sebastián García. "Galaxy NGC 7003 Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-05-24. Retrieved 2017-04-15.
- ^ "New General Catalog Objects: NGC 7000 – 7049". cseligman.com. Retrieved 2017-04-15.
- ^ "SN 2011dk". Transient Name Server. IAU. Retrieved 20 August 2024.
- ^ "Bright Supernovae - 2011". rochesterastronomy.org. Retrieved 2017-06-20.
- ^ "2011dk - The Open Supernova Catalog". sne.space. Archived from the original on 2017-10-14. Retrieved 2017-06-20.
- ^ M. Giovannini, E. Mazzoni, G. Petroni, and M. Rossi, Borgo a Mozzano, Fabrizio Ciabattari, S. Donati (10 June 2011). "SUPERNOVA 2011dk IN NGC 7003 = PSN J21004220+1748220". SUPERNOVA 2011dk IN NGC 7003 = PSN J21004220+1748220. Retrieved 2017-06-19.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ Giovanelli, Riccardo; Haynes, Martha P. (1993-04-01). "A Survey of the Pisces-Perseus Supercluster. VI. The Declination Zone +15.5 degrees to n+21.5 degrees". The Astronomical Journal. 105: 1271. Bibcode:1993AJ....105.1271G. doi:10.1086/116508. ISSN 0004-6256.
- ^ Arzoumanian, Zaven; Baker, Paul T.; Brazier, Adam; Brook, Paul R.; Burke-Spolaor, Sarah; Becsy, Bence; Charisi, Maria; Chatterjee, Shami; Cordes, James M.; Cornish, Neil J.; Crawford, Fronefield; Cromartie, H. Thankful; Decesar, Megan E.; Demorest, Paul B.; Dolch, Timothy (2021-06-01). "The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc". The Astrophysical Journal. 914 (2): 121. arXiv:2101.02716. Bibcode:2021ApJ...914..121A. doi:10.3847/1538-4357/abfcd3. ISSN 0004-637X.