| Arp 256 | |
|---|---|
 Image taken byHubble Space Telescope. | |
| Observation data (J2000epoch) | |
| Constellation | Cetus |
| Right ascension | 00h 18m 50.898s[1] |
| Declination | −10° 22′ 36.49″[1] |
| Redshift | 0.027[1] |
| Heliocentric radial velocity | 7985 km/s[1] |
| Distance | 380 Mly (115 Mpc)[2] |
| Apparent magnitude (V) | S: 14.33[1] N: 13.60[1] |
| Apparent magnitude (B) | S: 14.81[1] N: 13[1] |
| Characteristics | |
| Type | S: SB(s)b pec?[2] N: SB(s)c pec[2] |
| Apparent size (V) | S: 1.1′ × 0.6′[3] N: 1.1′ × 0.8′[4] |
| Notable features | Interacting galaxies |
| Other designations | |
| Arp 256S:MCG-02-01-051,PGC 1224[1] Arp 256N:MCG-02-01-052,PGC 1221[4] | |
Arp 256 is a pair of interacting barredspiral galaxies located 380 million light years away fromEarth in the constellation ofCetus. Arp 256 (alsoArp 256S) refers to the southerngalaxy;[1] the northern galaxy isArp 256N.[4]
Bothgalaxies are undergoing intensestar formation as seen from the many blue dots in them. Arp 256N has two long ribbon shaped spiral arms full ofgas,dust andstars.[5]
Media related toArp 256 at Wikimedia Commons | Thisspiral galaxy article is astub. You can help Wikipedia byexpanding it. |
