NGC 5221

NGC 5221
NGC 5221 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension13h 34m 55.9030s
Declination+13° 49′ 57.055″
Redshift0.023279±0.0000270
Heliocentric radial velocity6,979±8 km/s
Distance317.31 ± 5.34 Mly (97.288 ± 1.638 Mpc)
Apparent magnitude (V)13.80
Characteristics
TypeSb
Size~276,900 ly (84.90 kpc) (estimated)
Apparent size (V)2.4′ × 0.8′
Other designations
IRAS F13324+1405, 2MASX J13345590+1349571, Arp 288 NED03, UGC 8559, MCG +02-35-006, PGC 47869, CGCG 073-040, VV 315b

NGC 5221 is a spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 7,258±21 km/s, which corresponds to a Hubble distance of 349.2 ± 24.5 Mly (107.06 ± 7.50 Mpc). However, eight non-redshift measurements give a closer mean distance of 317.31 ± 5.34 Mly (97.288 ± 1.638 Mpc). It was discovered by German-British astronomer William Herschel on 12 April 1784.

NGC 5221 is a radio galaxy, i.e. it has giant regions of radio emission extending well beyond its visible structure.

Arp 288

The 3 galaxies of Arp 288 [PGC 93122, not labelled, is just to the left of NGC 5222]

NGC 5221 together with NGC 5222 [fr] and PGC 93122 [de] are catalogued as Arp 288 by Halton Arp in his Atlas of Peculiar Galaxies, in the category of "wind effects." The group is described by Arp as "Streamers in both directions from edge of spiral." The three galaxies are also listed as VV 315 in the Vorontsov-Vel'yaminov Interacting Galaxies catalogue.

Supernova

One supernova has been observed in NGC 5221:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 5221". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 12 February 2026.
  2. ↑ "Distance Results for NGC 5221". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 12 February 2026.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5221". Celestial Atlas. Retrieved 12 February 2026.
  4. ↑ Lin, Yen-Ting; Huang, Hung-Jin; Chen, Yen-Chi (2018). "An Analysis Framework for Understanding the Origin of Nuclear Activity in Low-power Radio Galaxies". The Astronomical Journal. 155 (5): 188. arXiv:1803.02482. Bibcode:2018AJ....155..188L. doi:10.3847/1538-3881/aab5b4.
  5. ↑ "NGC 5221". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 12 February 2026.
  6. ↑ Arp, Halton (1966). Atlas of Peculiar Galaxies. Pasadena, California: California Institute of Technology. Retrieved 5 January 2010. (online version, including Arp's original tabular data, and PDF link)
  7. ↑ Miller, A. A.; Laher, R.; Masci, F.; Surace, J.; Rebbapragada, U.; Bue, B.; Doran, G.; Bellm, E.; Cao, Y.; Kasliwal, M.; Kulkarni, S. (2016). "IPTF Discovery of a Young Transient in a Tidal Tail of NGC 5221". The Astronomer's Telegram. 8907: 1. Bibcode:2016ATel.8907....1M.
  8. 1 2 Cenko, S. B.; Cao, Y.; Kasliwal, M.; Miller, A. A.; Fremling, C.; West, M.; Gregg, M.; Kulkarni, S. R. (2016). "DCT and Gemini Spectroscopic Classification of AT 2016bln (=iPTF 16abc)". The Astronomer's Telegram. 8909: 1. Bibcode:2016ATel.8909....1C.
  9. ↑ "SN 2016bln". Transient Name Server. IAU. Retrieved 12 February 2026.