UGC 8335
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| UGC 8335 | |
|---|---|
.jpg?lang=en) An image of UGC 8335 taken in 2002 by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Right ascension | 13h 15m 32.8s [1] |
| Declination | +62° 07′ 37″ [1] |
| Redshift | 0.030831 ± 0.000097 [2] |
| Heliocentric radial velocity | 9243 ± 29 km/s [2] |
| Galactocentric velocity | 9364 ± 29 km/s [2] |
| Apparent magnitude (V) | 14.4 ± 0.4 [2] |
| Absolute magnitude (V) | -21.19 ± 0.64 [2] |
| Characteristics | |
| Mass | 0×100 M☉ |
| Size | 65.05 kpc × 26.67 kpc (212.2 kly × 87.0 kly) [1] |
| Apparent size (V) | 1.70′ × 0.70′ [3] |
| Other designations | |
| UGC 8335, VV 250, KPG 369, PGC 46133 | |
UGC 8335 (Arp 238) is a pair of strongly interacting spiral galaxies. They have been distorted by extreme tidal forces, creating prominent tidal tails and a bridge of gas and stars between the galaxies.[4][5]
UGC 8335 is about 400 million light-years from Earth, in the constellation Ursa Major. It is the 238th object in Halton Arp's Atlas of Peculiar Galaxies.[4]
SN 2012by
On April 25th, 2012, Supernova 2012by was discovered in UGC 8335 by Doug Rich.[6][7] At the time of discovery, the supernova had a magnitude of 17.6.[8] A peak magnitude measurement of 17.3 was recorded two days later, on April 27th.[6] SN 2012by was classified as a type II supernova by Tomasella et al. at the Astronomical Observatory of Padova. The research group also found that its spectrum was similar to that of SN 1996as.[8]
References
- ^ a b c d "SIMBAD Astronomical Database". Results for UGC 8335. Retrieved 2015-12-10.
- ^ a b c d e articles with dead external links%5d%5d%5b%5bCategory:Articles with dead external links %5d%5d[%5b%5bWikipedia:Link rot|dead link%5d%5d] "NASA/IPAC Extragalactic Database". Results for UGC 8335. Retrieved 2015-12-10.
{{cite web}}: Check|url=value (help) - ^ Nilson, P. (1973) Uppsala General Catalogue of Galaxies, Acta Universitatis Upsalienis, Nova Regiae Societatis Upsaliensis, Series V: A Vol. 1
- ^ a b "HubbleSite - NewsCenter - Cosmic Collisions Galore! (04/24/2008) - Release Images". hubblesite.org. Retrieved 2015-12-10.
- ^ "Astronomy Picture of the Day: 4/19/13 - UGC 8335". Futurism. Retrieved 2015-12-10.
- ^ a b "Bright Supernovae - 2012". www.rochesterastronomy.org. Retrieved 2015-12-10.
- ^ "List of Supernovae". www.cbat.eps.harvard.edu. Retrieved 2015-12-10.
- ^ a b Green, Daniel (2012-04-29). "[IAUC] CBET 3095: 20120429 : SUPERNOVA 2012by IN UGC 8335 = PSN J13152890+6207478". Electronic Telegram No. 3095. Central Bureau for Astronomical Telegrams. Retrieved 2015-12-10.