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 an intermediate 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 six supernovae in the last 60 years; SN 1962Q (mag 16.9), SN 1968V (mag 15.7), SN 1968W (mag 16.6), SN 1993X (type II, mag. 16.3), SN 2005dl (type II, mag. 17.1)[4] and the currently active SN 2016gfy (type II, mag 16.3).[5]

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 2276. Retrieved 2006-11-18.
  2. ↑ "NGC 2276: NASA's Chandra Finds Intriguing Member of Black Hole Family Tree". Chandra X-ray Center. Retrieved 2 January 2016.
  3. ↑ Harbaugh, Jennifer. "NASA's Chandra Finds Intriguing Member of Black Hole Family Tree". NASA. Retrieved 2 January 2016.
  4. ↑ List of Supernovae IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
  5. ↑ Spectroscopic classification of SN 2016gfy with the Nordic Optical Telescope The Astronomer's Telegram. Retrieved 17 October 2016.

External links

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