Astronomy:NGC 5056
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| NGC 5056 | |
|---|---|
 NGC 5056 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 13h 16m 12.3527s[1] |
| Declination | +30° 57′ 01.239″[1] |
| Redshift | 0.018653±0.000005[1] |
| Helio radial velocity | 5,592±1 km/s[1] |
| Distance | 208.31 ± 10.46 Mly (63.867 ± 3.207 Mpc)[1] |
| Group or cluster | [M98j] 192 |
| Apparent magnitude (V) | 13.7[1] |
| Characteristics | |
| Type | Scd[1] |
| Size | ~135,800 ly (41.65 kpc) (estimated)[1] |
| Apparent size (V) | 1.7′ × 1.0′[1] |
| Other designations | |
| IRAS 13138+3112, UGC 8337, MCG+05-31-166, PGC 46180[1] | |
NGC 5056 is a spiral galaxy in the constellation of Coma Berenices. Its velocity with respect to the cosmic microwave background is 5,839±17 km/s, which corresponds to a Hubble distance of 280.9 ± 19.7 Mly (86.13 ± 6.03 Mpc).[1] However, 39 non-redshift measurements give a closer mean distance of 208.31 ± 10.46 Mly (63.867 ± 3.207 Mpc).[2] It was discovered by German-British astronomer William Herschel on 13 March 1785.[3][4]
NGC 5056 is listed as having an active galactic nucleus.[5]
According to Abraham Mahtessian, NGC 5056 and NGC 5065 form a pair of galaxies, known as [M98j] 192.[6]
Supernova
One supernova has been observed in NGC 5056:
- SN 2005au (Type II, mag. 15.8) was discovered by British amateur astronomer Ron Arbour on 19 March 2005.[7][8]
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 5056". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+5056.
- ↑ "Distance Results for NGC 5056". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+5056.
- ↑ Herschel, W. (1786). "Catalogue of One Thousand New Nebulae and Clusters of Stars". Philosophical Transactions of the Royal Society of London 76: 457–499. doi:10.1098/rstl.1786.0027. Bibcode: 1786RSPT...76..457H. https://zenodo.org/record/1432282/files/article.pdf.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5056". https://cseligman.com/text/atlas/ngc50a.htm#5056.
- ↑ "NGC 5056". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+5056.
- ↑ Mahtessian, A. P. (1998). "Groups of galaxies. III. Some empirical characteristics". Astrophysics 41 (3): 308–321. doi:10.1007/BF03036100. Bibcode: 1998Ap.....41..308M.
- ↑ Arbour, R.; Briggs, D. (2005). "Supernovae 2005at and 2005au". International Astronomical Union Circular (8496): 3. Bibcode: 2005IAUC.8496....3A. http://www.cbat.eps.harvard.edu/iauc/08400/08496.html#Item3.
- ↑ "SN 2005au". IAU. https://www.wis-tns.org/object/2005au.
External links
- NGC 5056 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
13h 16m 12.3527s, +30° 57′ 01.239″
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