NGC 3191

NGC 3191
Observation data (J2000 epoch)
Constellation Ursa Major
Right ascension 10h 19m 05.1s[1]
Declination 46° 27′ 15″[1]
Redshift 9182 ± 4 km/s[1]
Distance 411 Mly (126 Mpc)[1]
Apparent magnitude (V) 13.2
Characteristics
Type SB(s)bc pec [1]
Apparent size (V) 0′.8 × 0′.6[1]
Other designations
NGC 3192, UGC 5565, MCG +08-19-018, PGC 30136[1]

NGC 3191 (also known as NGC 3192) is a barred spiral galaxy in constellation Ursa Major. It is located at a distance of circa 400 million light years from Earth, which, given its apparent dimensions, means that NGC 3191 is about 115,000 light years across. The galaxy has been distorted and interacts with a companion 1.3 armin to the west. An extremely blue tidal bridge lies between them.[2]

Two supernovae have been observed in NGC 3191, SN 1988B and SN 2017egm. SN 1988B was discovered by P. Wild 10" north of the galaxy's center. On Jan. 18.94 and 21.85 UT, it was at mag about 15.5.[3] It was a type Ia supernova.[4] SN 2017egm is identified as a Type I superluminous supernova. It is the closest supernova of this type observed and also the first to be found in a massive spiral galaxy. It was discovered by Gaia satellite on 23 May.[5]

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 3191. Retrieved 2016-01-18.
  2. ↑ Takeuchi, Tsutomu T.; Tomita, Akihiko; Nakanishi, Kouichiro; Ishii, Takako T.; Iwata, Ikuru; Saito, Mamoru (April 1999). "Photometric Properties of Kiso Ultraviolet - Excess Galaxies in the Lynx - Ursa Major Region". The Astrophysical Journal Supplement Series. 121 (2): 445–472. doi:10.1086/313203.
  3. ↑ "IAUC 4533". Central Bureau for Astronomical Telegrams. Retrieved 29 June 2017.
  4. ↑ "IAUC 4535". Central Bureau for Astronomical Telegrams. Retrieved 29 June 2017.
  5. ↑ Nicholl, Matt; Berger, Edo; Margutti, Raffaella; Blanchard, Peter K.; Guillochon, James; Leja, Joel; Chornock, Ryan (27 June 2017). "The superluminous supernova SN 2017egm in the nearby galaxy NGC 3191: a metal-rich environment can support a typical SLSN evolution". arXiv:1706.08517 Freely accessible.
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