| NGC 2525 | |
|---|---|
 NGC 2525 by Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Puppis |
| Right ascension | 08h 05m 38s[1] |
| Declination | −11° 25′ 37″[1] |
| Redshift | 0.005274 ± 0.000017 [1] |
| Heliocentric radial velocity | 1,581 ± 5 km/s[1] |
| Distance | 71 Mly (21.9 Mpc)[2] |
| Apparent magnitude (V) | 11.6 [3] |
| Characteristics | |
| Type | SB(s)c [1] |
| Apparent size (V) | 2.9′ × 1.9′ [1] |
| Other designations | |
| UGCA 135, MCG -02-21-004, PGC 22721[1] | |
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NGC 2525 is a barred spiral galaxy located in the constellation Puppis. It is located at a distance of about 70 million light years from Earth, which, given its apparent dimensions, means that NGC 2525 is about 60,000 light years across. It was discovered by William Herschel on February 23, 1791.[4]
The galaxy has a bar and two main spiral arms with high surface brightness. HII regions are observed in the arms. The brightest stars of the galaxy have apparent magnitude around 22. Its nucleus is small and bright.[5] In the centre of the galaxy is predicted to lie a supermassive black hole whose age is estimated to be between 1.1 and 44 million years, based on the spiral arm pitch angle.[6][7]
- ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 2525. Retrieved 2016-01-18.
- ^ Theureau, G.; Hanski, M. O.; Coudreau, N.; Hallet, N.; Martin, J.-M. (19 December 2006). "Kinematics of the Local Universe". Astronomy & Astrophysics. 465 (1): 71–85. arXiv:astro-ph/0109080. doi:10.1051/0004-6361:20066187. S2CID 14251529.
- ^ "Revised NGC Data for NGC 2525". spider.seds.org. Retrieved 25 November 2018.
- ^ Seligman, Courtney. "NGC 2525". Celestial Atlas. Retrieved 19 November 2018.
- ^ Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington
- ^ Davis, Benjamin L.; Berrier, Joel C.; Johns, Lucas; Shields, Douglas W.; Hartley, Matthew T.; Kennefick, Daniel; Kennefick, Julia; Seigar, Marc S.; Lacy, Claud H. S. (20 June 2014). "The black hole mass function derived from local spiral galaxies". The Astrophysical Journal. 789 (2): 124. arXiv:1405.5876. Bibcode:2014ApJ...789..124D. doi:10.1088/0004-637X/789/2/124. S2CID 119302157.
- ^ Treuthardt, Patrick; Seigar, Marc S.; Sierra, Amber D.; Al-Baidhany, Ismaeel; Salo, Heikki; Kennefick, Daniel; Kennefick, Julia; Lacy, Claud H. S. (11 July 2012). "On the link between central black holes, bar dynamics and dark matter haloes in spiral galaxies". Monthly Notices of the Royal Astronomical Society. 423 (4): 3118–3133. arXiv:1204.4210. Bibcode:2012MNRAS.423.3118T. doi:10.1111/j.1365-2966.2012.21118.x.