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NGC 2276 is an intermediate spiral galaxy in the constellation Cepheus. The galaxy lies 120 million light-years away from Earth. NGC 2276 has an asymmetrical appearance, most likely caused by gravitational interactions with its neighbor, elliptical galaxy NGC 2300. One of the many starburst spiral arms contains an intermediate mass black hole with 50,000 times the mass of the Sun, named NGC 2276-3c. NGC 2276-3c has produced two jets: a large-scale radio jet, approximately 2,000 light years long, and an "inner jet" about 6 light years long. The galaxy shows an enhanced rate of star formation that may have been triggered by a collision with a dwarf galaxy,[2][3] or by the gravitational interaction with its neighbor compressing gas and dust.

NGC 2276
NGC 2276 (left) and NGC 2300 (right)
Observation data (J2000 epoch)
ConstellationCepheus
Right ascension07h 27m 14.3s[1]
Declination+85° 45′ 15″[1]
Redshift2416 ± 2 km/s[1]
Distance120 Mly (36.8 Mpc)[1]
Apparent magnitude (V)11.8
Characteristics
TypeSAB(rs)c [1]
Apparent size (V)2′.8 × 2′.7[1]
Other designations
UGC 3740, Arp 25, Arp 114, PGC 21039[1]

It was discovered by Friedrich August Theodor Winnecke in 1876. In the Atlas of Peculiar Galaxies, the galaxy is mentioned twice, once 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 to 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 SN 2016gfy (type II, mag 16.3).[5]




References


  1. "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 (2015-02-26). "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.
  6. "Hubble Inspects a Contorted Spiral Galaxy". Retrieved June 8, 2021.




На других языках

[de] NGC 2276

NGC 2276 = Arp 25 ist eine Balken-Spiralgalaxie vom Hubble-Typ SBc im Sternbild Kepheus am Nordsternhimmel. Sie ist rund 115 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 75.000 Lichtjahren. Die chaotisch asymmetrische Struktur der Spiralarme und die ausgedehnten Sternentstehungsgebiete scheinen auf eine Wechselwirkung mit der nahe gelegenen NGC 2300 zu deuten.
- [en] NGC 2276

[ru] NGC 2276

NGC 2276 (другие обозначения — UGC 3740, IRAS07101+8550, MCG 14-4-28, KCPG 127A, ZWG 362.42, ZWG 363.27, 7ZW 134, ARP 25, Arp 114, PGC 21039) — спиральная галактика с перемычкой (SBc) в созвездии Цефей, находящаяся на расстоянии 105—110 миллионов световых лет.


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