UGC 8335
| UGC 8335 | |
|---|---|
| 400px
An image of UGC 8335 taken in 2002 by the Hubble Space Telescope
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| Observation data (J2000 epoch) | |
| Right ascension | 13h 15m 32.8s [1] |
| Declination | +62° 07′ 37″ [1] |
| Redshift | 0.030831 ± 0.000097 [2] |
| Helio radial velocity | 9243 ± 29 km/s [2] |
| Galactocentric velocity | 9364 ± 29 km/s [2] |
| Distance (comoving) | 128.3 ± 9.0 Mpc (418 ± 29 Mly) h−1 0.73[1] |
| Size (ly) | 65.05 kpc × 26.67 kpc (212.2 kly × 87.0 kly) [1] |
| Apparent dimensions (V) | 1.70′ × 0.70′[3] |
| Apparent magnitude (V) | 14.4 ± 0.4 [2] |
| Absolute magnitude (V) | -21.19 ± 0.64 [2] |
| Other designations | |
| Arp 238, 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]
Supernova 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
- ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 2.3 2.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Nilson, P. (1973) Uppsala General Catalogue of Galaxies, Acta Universitatis Upsalienis, Nova Regiae Societatis Upsaliensis, Series V: A Vol. 1
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
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