NGC 2276
| NGC 2276 | |
|---|---|
 NGC 2276 (left) and NGC 2300 (right) | |
| Observation data (J2000 epoch) | |
| Constellation | Cepheus |
| Right ascension | 07h 27m 14.3s[1] |
| Declination | +85° 45′ 15″[1] |
| Redshift | 2416 ± 2 km/s[1] |
| Distance | 120 Mly (36.8 Mpc)[1] |
| Apparent magnitude (V) | 11.8 |
| Characteristics | |
| Type | SAB(rs)c [1] |
| Apparent size (V) | 2′.8 × 2′.7[1] |
| Other designations | |
| UGC 3740, Arp 25, Arp 114, PGC 21039[1] | |
NGC 2276 is a spiral galaxy in the constellation Cepheus. It is at a distance of about 105 million light-years away from Earth. The galaxy has asymmetrical appearance, probably due to its interaction with the elliptical galaxy NGC 2300. In the spiral arms of NGC 2276 has been discovered an intermediate mass black hole, 50,000 more massive than the Sun, named NGC 2276-3c. In the galaxy have been also found another seven ultraluminous X-ray sources. The hole has produced a radio-jet, 2,000 light years long. The galaxy shows high rate of star formation that may have been triggered by a collision with a dwarf galaxy.[2][3]
It was discovered by Friedrich August Theodor Winnecke in 1876. In the Atlas of Peculiar Galaxies, the galaxy is mentioned twice, one as Arp 25, in the category spiral galaxies with one heavy arm, and one more time as Arp 114, in the category elliptical galaxies close to and perturbing spiral galaxies, in pair with NGC 2300.
NGC 2276 has been home of five supernovae in the last 50 years; SN 1962Q (mag 16.9), SN 1968V (mag 15.7), SN 1968W (mag 16.6), SN 1993X (type II, mag. 16.3), and SN 2005dl (type II, mag. 17.1).[4]
References
- ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 2276. Retrieved 2006-11-18.
- ^ "NGC 2276: NASA's Chandra Finds Intriguing Member of Black Hole Family Tree". Chandra X-ray Center. Retrieved 2 January 2016.
- ^ Harbaugh, Jennifer. "NASA's Chandra Finds Intriguing Member of Black Hole Family Tree". NASA. Retrieved 2 January 2016.
- ^ List of Supernovae IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
External links
- NGC 2276 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images