| NGC 474 | |
|---|---|
 A Hubble Space Telescope image of NGC 474 | |
| Observation data (J2000[1] epoch) | |
| Constellation | Pisces[2] |
| Right ascension | 01h 20m 06.7s[1] |
| Declination | +03° 24′ 58″[1] |
| Redshift | 0.007755[1] |
| Heliocentric radial velocity | 2325 km/s ±7 km/s[1] |
| Galactocentric velocity | 2398 km/s ±7 km/s[1] |
| Distance | ~100 Mly (~31 Mpc)[2] |
| Characteristics | |
| Type | S0[3] |
| Size | 250,000 ly (diameter)[4] |
| Other designations | |
| Arp 227, MCG 0-4-85, PGC 4801, UGC 864, ZWG 385.71[3] | |
NGC 474 is an elliptical galaxy about 100 million light years distant in the constellation Pisces. This large galaxy is known to possess tidal shells[5] and tidal tails, although their origins remain unclear.[2] One possible explanation is that NGC 474 interacted with a galaxy several billion years ago.[6]
- ^ a b c d e f "NED results for object NGC 0474*". NASA/IPAC Extragalactic Database. Retrieved 2011-02-26.
- ^ a b c Schirmer, Mischa. "NGC 474". Archived from the original on 2011-06-29. Retrieved 2011-02-26.
- ^ a b "Revised NGC Data for NGC 474". The Interactive NGC Catalog Online. Retrieved 2011-02-26.
- ^ "Galaxy NGC 474". NASA Astronomy Picture of the Day. Retrieved 2018-02-07.
- ^ Cite error: The named reference
Bilekwas invoked but never defined (see the help page). - ^ Alabi, A.B.; Anna, F-M.; Forbes, D.A.; Romanowsky, A.J.; Brodie, J.P. (September 2020). "NGC 474 as viewed with KCWI: diagnosing a shell galaxy". Monthly Notices of the Royal Astronomical Society. 497 (1): 626–631. arXiv:2007.01870. doi:10.1093/mnras/staa1992.