Astronomy:NGC 5980
From HandWiki
| NGC 5980 | |
|---|---|
 NGC 5980 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Serpens |
| Right ascension | 15h 41m 30.4158s[1] |
| Declination | +15° 47′ 15.738″[1] |
| Redshift | 0.013649±0.0000170[1] |
| Helio radial velocity | 4,092±5 km/s[1] |
| Distance | 155.90 ± 2.21 Mly (47.800 ± 0.677 Mpc)[1] |
| Apparent magnitude (B) | 12.3[1] |
| Characteristics | |
| Type | S[1] |
| Size | ~86,400 ly (26.49 kpc) (estimated)[1] |
| Apparent size (V) | 1.9′ × 0.7′[1] |
| Other designations | |
| HOLM 720A, IRAS 15391+1556, UGC 9974, MCG+03-40-026, PGC 55800[1] | |
NGC 5980 is a spiral galaxy in the constellation of Serpens. Its velocity with respect to the cosmic microwave background is 4,216±10 km/s, which corresponds to a Hubble distance of 202.8 ± 14.2 Mly (62.18 ± 4.36 Mpc).[1] However, five non-redshift measurements give a closer mean distance of 155.90 ± 2.21 Mly (47.800 ± 0.677 Mpc).[2] It was discovered by German-British astronomer William Herschel on 19 March 1787.[3][4]
Supernovae
Two supernovae have been observed in NGC 5980:
- SN 2004ci (Type II, mag. 17.5) was discovered by the Lick Observatory Supernova Search (LOSS) on 15 June 2004, and independently by Mark Armstrong on 16 June 2004.[5][6]
- SN 2019pqo (Type IIb, mag. 18.6697) was discovered by the Automatic Learning for the Rapid Classification of Events (ALeRCE) on 7 September 2019.[7]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 5980". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+5980.
- ↑ "Distance Results for NGC 5980". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+5980.
- ↑ Herschel, W. (1789). "Catalogue of a Second Thousand of New Nebulae and Clusters of Stars; with a Few Introductory Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London 79: 212–255. doi:10.1098/rstl.1789.0021. Bibcode: 1789RSPT...79..212H.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5980". https://cseligman.com/text/atlas/ngc59a.htm#5980.
- ↑ Armstrong, M.; Park, S.; Foley, R. J. (2004). "Supernova 2004ci in NGC 5980". International Astronomical Union Circular (8357): 1. Bibcode: 2004IAUC.8357....1A. http://www.cbat.eps.harvard.edu/iauc/08300/08357.html#Item1.
- ↑ "SN 2004ci". IAU. https://www.wis-tns.org/object/2004ci.
- ↑ "SN 2019pqov". IAU. https://www.wis-tns.org/object/2019pqo.
External links
- NGC 5980 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
15h 41m 30.4158s, +15° 47′ 15.738″
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