| UGC 4457 | |
|---|---|
 Hubble Space Telescope image of UGC 4457 | |
| Observation data (J2000epoch) | |
| Constellation | Cancer |
| Right ascension | 08h 31m 57.6s |
| Declination | +19° 12′ 41.4″ |
| Redshift | 0.037179 |
| Heliocentric radial velocity | 11,162 km/s |
| Distance | 500Mly (153.3Mpc) |
| Characteristics | |
| Type | SAB(rs)pec |
| Size | 290,000ly |
| Apparent size (V) | 0.96' x 0.50' |
| Notable features | Interacting galaxy |
| Other designations | |
| UGC 4457PGC 23935, Arp 58,IRAS 08290+1922,MCG +03-22-017, VV 413,LEDA 23935, Z 89-40 | |
UGC 4457 known asPGC 23935, is abarred spiral galaxy, containing anactive galactic nucleus in theCancer constellation.[1][2][3] It is located 500 million light-years away from theSolar System[3] and has adiameter of 290,000 light-years,[1] making it slightly more massive compared to theMilky Way.[4] The galaxy is moving away at a speed of 11,162 kilometers per second.[1]
UGC 4457 is interacting with the compact galaxy, PGC 23937. Together, they form Arp 58 and are classified under spiral galaxies that have small companions with high surface brightness.[5] In addition, this interacting galaxy pair is also anM51 type system.[6]
UGC 4457 shows disturbedspiral arms, indicating signs ofvelocity disturbance levels and regions of scattered ionized gas, typically normal forinteracting galaxies. A faint spiral bridge can be seen thus representing the remains of an older mode of spiral waves.[7]
