NGC 488

NGC 488
NGC 488 imaged by the Mount Lemmon Observatory
Observation data (J2000 epoch)
ConstellationPisces
Right ascension01h 21m 46.7904s
Declination+05° 15′ 24.696″
Redshift0.007579
Heliocentric radial velocity2272 ± 1 km/s
Distance98.3 ± 3.9 Mly (30.15 ± 1.2 Mpc)
Apparent magnitude (V)10.4
Characteristics
TypeSA(r)b
Size~185,800 ly (56.97 kpc) (estimated)
Apparent size (V)5.4′ × 3.9′
Notable featuresPrototype galaxy with multiple spiral arms
Other designations
IRAS 01191+0459, UGC 907, MCG +01-04-033, PGC 4946, CGCG 411-033

NGC 488, also known as the Whirligig Galaxy, is a face-on spiral galaxy in the constellation Pisces. It was discovered by German-British astronomer William Herschel on 13 December 1784. It is at a distance of about 90 million light-years away from Earth. Its diameter is estimated to be ~185,800 Light Years (~52.7 Kpc). The galaxy has a large central bulge, and is considered a prototype galaxy with multiple spiral arms. Its arms are tightly wound. Star forming activity has been traced within the arms. The nucleus of NGC 488 has been found to be chemically decoupled, being twice as metal rich as the central bulge of the galaxy.

NGC 488 Group

NGC 488, with the exception of its smaller companions, form the NGC 488 group; a relatively isolated galaxy group.

NGC 488 is part of a galaxy group known as NGC 488 Group or LGG 21. It has at least 7 members, which are NGC 488, NGC 485, NGC 490, UGC 942, UGC 882, UGC 871 and UGC 888.

Supernovae

Two supernovae have been observed in NGC 488:

See also

References

  1. 1 2 3 4 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 157. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9.
  2. 1 2 3 4 5 6 7 8 9 "NASA/IPAC Extragalactic Database". Results for object NGC 488. Retrieved 2006-11-18.
  3. 1 2 Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington, p. 15
  4. ↑ O'Meara, Stephen James (2011). Deep-Sky Companions: The Secret Deep. Cambridge University Press. ISBN 978-0-521-19876-9.
  5. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 488". Celestial Atlas. Retrieved 4 December 2024.
  6. ↑ NGC 488 Galaxy Galaxies and Clusters of Galaxies, Isaac Newton Group of Telescopes
  7. ↑ Sil'chenko, O. K. (March 1999). "Chemically decoupled nucleus and the structure of the nuclear region in the spiral galaxy NGC 488". Astronomy Letters. 25 (3): 140–8. Bibcode:1999AstL...25..140S. Retrieved 29 December 2015.
  8. ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy & Astrophysics Supplement Series. 100: 47–90. Bibcode:1993A&AS..100...47G.
  9. ↑ Szeidl, B.; Lovas, M. (1976). "Supernova in NGC 488". International Astronomical Union Circular (2998): 1. Bibcode:1976IAUC.2998....1S.
  10. ↑ "SN 1976G". Transient Name Server. IAU. Retrieved 4 December 2024.
  11. ↑ Wild, P.; Szeldl, B.; Lovas, M. (1976). "Supernovae". International Astronomical Union Circular (2999): 2. Bibcode:1976IAUC.2999....2W.
  12. ↑ Monard, L. A. G. (2010). "Supernova 2010eb in NGC 488". Central Bureau Electronic Telegrams (2321): 1. Bibcode:2010CBET.2321....1M.
  13. ↑ "SN 2010eb". Transient Name Server. IAU. Retrieved 4 December 2024.