NGC 488
| NGC 488 | |
|---|---|
 NGC 488 imaged by the Mount Lemmon Observatory | |
| Observation data (J2000 epoch) | |
| Constellation | Pisces[1] |
| Right ascension | 01h 21m 46.7904s[2] |
| Declination | +05° 15′ 24.696″[2] |
| Redshift | 0.007579[2] |
| Heliocentric radial velocity | 2272 ± 1 km/s[2] |
| Distance | 98.3 ± 3.9 Mly (30.15 ± 1.2 Mpc)[2] |
| Apparent magnitude (V) | 10.4[1] |
| Characteristics | |
| Type | SA(r)b[2] |
| Size | ~185,800 ly (56.97 kpc) (estimated)[2] |
| Apparent size (V) | 5.4′ × 3.9′[1] |
| Notable features | Prototype galaxy with multiple spiral arms[3] |
| Other designations | |
| IRAS 01191+0459, UGC 907, MCG +01-04-033, PGC 4946, CGCG 411-033[2] | |
NGC 488 is a face-on spiral galaxy in the constellation Pisces.[1] It was discovered by German-British astronomer William Herschel on 13 December 1784.[4] It is at a distance of about 90 million light-years away from Earth.[5] Its diameter is estimated to be ~185,800 Light Years (~52.7 Kpc).[2] 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.[3] 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
[edit]NGC 488, with the exception of its smaller companions, form the NGC 488 group; a relatively isolated galaxy group.[6]
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.[7]
Supernovae
[edit]Two supernovae have been observed in NGC 488:
- SN 1976G (type unknown, mag. 15) was discovered by Miklós Lovas on 21 October 1976.[8][9] It was also independently discovered by Swiss astronomer Paul Wild on 23 October 1976.[10]
- SN 2010eb (Type Ia, mag. 14.7) was discovered by Berto Monard on 12 June 2010.[11][12]
Gallery
[edit]
NGC 488 imaged by SDSS
NGC 488 imaged by 2MASS
NGC 488 imaged by the Hubble Space Telescope
See also
[edit]References
[edit]- 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.
- 1 2 3 4 5 6 7 8 9 "NASA/IPAC Extragalactic Database". Results for object NGC 488. Retrieved 2006-11-18.
- 1 2 Sandage, A., Bedke, J. (1994), The Carnegie Atlas of Galaxies. Volume I, Carnegie Institution of Washington, p. 15
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 488". Celestial Atlas. Retrieved 4 December 2024.
- ↑ NGC 488 Galaxy Galaxies and Clusters of Galaxies, Isaac Newton Group of Telescopes
- ↑ 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.
- ↑ 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.
- ↑ Szeidl, B.; Lovas, M. (1976). "Supernova in NGC 488". International Astronomical Union Circular (2998): 1. Bibcode:1976IAUC.2998....1S.
- ↑ "SN 1976G". Transient Name Server. IAU. Retrieved 4 December 2024.
- ↑ Wild, P.; Szeldl, B.; Lovas, M. (1976). "Supernovae". International Astronomical Union Circular (2999): 2. Bibcode:1976IAUC.2999....2W.
- ↑ Monard, L. A. G. (2010). "Supernova 2010eb in NGC 488". Central Bureau Electronic Telegrams (2321): 1. Bibcode:2010CBET.2321....1M.
- ↑ "SN 2010eb". Transient Name Server. IAU. Retrieved 4 December 2024.
External links
[edit]
Media related to NGC 488 at Wikimedia Commons- NGC 488 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
