NGC 474

NGC 474 is an elliptical galaxy about 100 million light years distant in the constellation Pisces. This large galaxy is known to possess tidal tails, although their origins remain unknown.[2]

NGC 474
A Hubble Space Telescope image of NGC 474. (NASA, STScI, Sky-map.org)
Observation data (J2000[1] epoch)
Constellation	Pisces[2]
Right ascension	01^h 20^m 06.7^s[1]
Declination	+03° 24′ 58″[1]
Redshift	0.007755[1]
Helio 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]

Supernova

In July 2017 a Type Ia supernova designated SN 2017fgc was discovered in NGC 474.[5] It was located a considerable distance from the galactic nucleus.[6]

Gallery

Further reading

• Turnbull, A. J.; Carter, D.; Bridges, T. J.; Thomson, R. C. (1999) Shell Formation in NGC474

References

1. "NED results for object NGC 0474*". NASA/IPAC Extragalactic Database. Retrieved 2011-02-26.
2. Schirmer, Mischa. "NGC 474". Archived from the original on 2011-06-29. Retrieved 2011-02-26.
3. "Revised NGC Data for NGC 474". The Interactive NGC Catalog Online. Retrieved 2011-02-26.
4. "Galaxy NGC 474". NASA Astronomy Picture of the Day. Retrieved 2018-02-07.
5. "SN 2017 fgc". Transient Name Server. Retrieved 9 February 2018.
6. King, Bob (2017-07-26). "Sky Surprises: New Comet ASASSN1, Nova in Scutum, and Supernova in Pisces!". Sky & Telescope.

External links

• Media related to NGC 474 at Wikimedia Commons
• Galaxy NGC 474: Cosmic Blender, NASA Astronomy Picture of the Day (8 October 2007)
• Shell Galaxies in Pisces, NASA Astronomy Picture of the Day (27 February 2011)
• Galaxy NGC 474: Shells and Star Streams, NASA Astronomy Picture of the Day (5 January 2014)
• Galaxy NGC 474: Shells and Star Streams, NASA Astronomy Picture of the Day (6 February 2018)