Article · Wikipedia archive · Last revised Jul 19, 2026

IC 4271

IC 4271 is a spiral galaxy located some 800 million light-years away in the Canes Venatici constellation. It is 157,000 light-years in diameter. IC 4271 was first located on July 10, 1896, by Stephane Javelle, a French astronomer. It hosts a Seyfert type 2 nucleus, containing an acceleration disc around its supermassive black hole which releases large amounts of radiation, hence its bright appearance. IC 4271 appears to be interacting with its smaller neighboring galaxy, PGC 3096774.

Last revised
Jul 19, 2026
Read time
≈ 1 min
Length
244 w
Citations
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Source
Wikipedia ↗
IC 4271
IC 4271 captured by Hubble
Observation data (J2000 epoch)
ConstellationCanes Venatici
Right ascension13h 29m 21.40s
Declination+37d 24m 42.0s
Redshift0.057000
Heliocentric radial velocity16,625 km/s
Distance800 Mly (245.3 Mpc)
Apparent magnitude (V)15 (15.3)
Apparent magnitude (B)15.8 (16.3)
Surface brightness13.3 (12.5)
Characteristics
TypeSBab? pec + Sc?
Size157,000 ly (48.16 kpc)
Apparent size (V)0.8' x 0.5'
Other designations
PGC 47334, Arp 40, NVSS J132921+372447, MCG +06-30-15, Z 190-12, VV 355

IC 4271 is a spiral galaxy located some 800 million light-years away in the Canes Venatici constellation.1 It is 157,000 light-years in diameter.2 IC 4271 was first located on July 10, 1896, by Stephane Javelle, a French astronomer.2 It hosts a Seyfert type 2 nucleus, containing an acceleration disc around its supermassive black hole which releases large amounts of radiation, hence its bright appearance.34 IC 4271 appears to be interacting with its smaller neighboring galaxy, PGC 3096774.256

Both galaxies form Arp 40.78 In the Atlas of Peculiar Galaxies created by Halton Arp, they fall under spiral galaxies that have companions with low-surface-brightness.

References

References

  1. "IC 4271 NED01 - Barred Spiral Galaxy in Canes Venatici | TheSkyLive.com". theskylive.com. Retrieved 2024-04-16.
  2. "Index Catalog Objects: IC 4250 - 4299". cseligman.com. Retrieved 2024-04-16.
  3. Lazaro, Enrico de (2022-05-20). "Hubble Looks at Curious Pair of Spiral Galaxies | Sci.News". Sci.News: Breaking Science News. Retrieved 2024-04-16.
  4. "IC 4271". simbad.cds.unistra.fr. Retrieved 2024-04-16.
  5. "IC 4271 NED02 - Galaxy in Canes Venatici | TheSkyLive.com". theskylive.com. Retrieved 2024-04-16.
  6. "Revised IC Data for IC 4271". spider.seds.org. Retrieved 2024-07-24.
  7. "By Name | NASA/IPAC Extragalactic Database". ned.ipac.caltech.edu. Retrieved 2024-04-16.
  8. "Halton Arp's Atlas of Peculiar Galaxies". cseligman.com. Retrieved 2024-04-16.