| NGC 7015 | |
|---|---|
 The galaxy NGC 7015. | |
| Observation data (J2000 epoch) | |
| Constellation | Equuleus |
| Right ascension | 21h 05m 37.4s[1] |
| Declination | 11° 24′ 51″[1] |
| Redshift | 0.016281[1] |
| Heliocentric radial velocity | 4,881 km/s[1] |
| Distance | 203 Mly (62.3 Mpc)[1] |
| Apparent magnitude (V) | 13.25[1] |
| Characteristics | |
| Type | Sbc[1] |
| Mass | 8.6×1010 (Stellar mass)[2] M☉ |
| Size | ~50,700 ly (15.53 kpc) (estimated)[1] |
| Apparent size (V) | 1.9 x 1.6[1] |
| Other designations | |
| IRAS 21032+1112, UGC 11674, MCG 2-53-12, PGC 66076, CGCG 425-40[1] | |
NGC 7015 is a spiral galaxy located about 203 million light-years away from Earth in the constellation Equuleus.[3][4] NGC 7015's calculated velocity is 4,881 km/s (3,033 mi/s).[4] NGC 7015 was discovered by French astronomer Édouard Stephan on September 29, 1878.[5]
NGC 7015 has two symmetric inner arms, with multiple long and continuous outer arms.[6] It is also host to a supermassive black hole with an estimated mass of 8.2 × 107 M☉.[7] NGC 7015 is a member of a group of galaxies known as the NGC 7042 Group. This group contains ten galaxies, with the group named after its brightest member, NGC 7042. Besides NGC 7015, the group also contains, NGC 7025, NGC 7042, NGC 7043, and IC 1359.[8]
- ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 7015. Retrieved 2017-05-27.
- ^ Leroy, Adam K.; Sandstrom, Karin M.; Lang, Dustin; Lewis, Alexia; Salim, Samir; Behrens, Erica A.; Chastenet, Jérémy; Chiang, I-Da; Gallagher, Molly J.; Kessler, Sarah; Utomo, Dyas (2019-10-01). "A z = 0 Multiwavelength Galaxy Synthesis. I. A WISE and GALEX Atlas of Local Galaxies". The Astrophysical Journal Supplement Series. 244 (2): 24. arXiv:1910.13470. Bibcode:2019ApJS..244...24L. doi:10.3847/1538-4365/ab3925. ISSN 0067-0049.
- ^ Rojas, Sebastián García. "Galaxy NGC 7015 · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-05-27.
- ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-05-27.
- ^ "New General Catalog Objects: NGC 7000 – 7049". cseligman.com. Retrieved 2017-04-15.
- ^ Elmegreen, Debra Meloy; Elmegreen, Bruce G. (1987-03-01). "Arm Classifications for Spiral Galaxies". The Astrophysical Journal. 314: 3. doi:10.1086/165034. ISSN 0004-637X.
- ^ 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.
- ^ Garcia, A. M. (1993-07-01). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47–90. ISSN 0365-0138.