Right ascension 13 15 32.8 Redshift 0.030831 ± 0.000097 Galactocentric velocity 9364 ± 29 km/s | Declination +62° 07′ 37″ Helio radial velocity 9243 ± 29 km/s Constellation Ursa Major | |
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Distance (comoving) 128.3 ± 9.0 Mpc (418 ± 29 Mly) h−1
0.73 Similar Mayall's Object, Arp 272, NGC 6786, ZW II 96, Arp 302 | ||
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.
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.
Supernova 2012by
On April 25th, 2012, Supernova 2012by was discovered in UGC 8335 by Doug Rich. At the time of discovery, the supernova had a magnitude of 17.6. A peak magnitude measurement of 17.3 was recorded two days later, on April 27th. 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.