Astronomy:NGC 2986
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| NGC 2986 | |
|---|---|
 NGC 2986 imaged by legacy surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Hydra |
| Right ascension | 09h 44m 16.0188s[1] |
| Declination | −21° 16′ 40.924″[1] |
| Redshift | 0.007679±0.000014[1] |
| Helio radial velocity | 2,302±4 km/s[1] |
| Distance | 116.31 ± 8.30 Mly (35.661 ± 2.544 Mpc)[1] |
| Group or cluster | NGC 2935 Group |
| Apparent magnitude (V) | 11.72[1] |
| Characteristics | |
| Type | E2[1] |
| Size | ~251,900 ly (77.23 kpc) (estimated)[1] |
| Apparent size (V) | 3.2′ × 2.8′[1] |
| Other designations | |
| ESO 566- G 005, MCG-03-25-019, PGC 27885[1] | |
NGC 2986 is an elliptical galaxy in the constellation of Hydra. Its velocity with respect to the cosmic microwave background is 2,637±24 km/s, which corresponds to a Hubble distance of 126.8 ± 9.0 Mly (38.89 ± 2.75 Mpc).[1] Additionally, 18 non-redshift measurements give a distance of 116.31 ± 8.30 Mly (35.661 ± 2.544 Mpc).[2] It was discovered by German-British astronomer William Herschel on 10 March 1785.[3][4]
Supernovae
Two supernovae have been observed in NGC 2986:
- SN 1999gh (Type Ia, mag. 14.6) was discovered by Japanese astronomer Kesao Takamizawa on 3 December 1999.[5][6]
- SN 2025gj (Type Ia, mag. 17.9125) was discovered by the Distance Less Than 40 Mpc Survey (DLT40) on 8 January 2025.[7]
NGC 2935 group
NGC 2986 is part of a small group of three galaxies, the NGC 2935 group. The other 2 galaxies in this group are NGC 2935 and NGC 2983.[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 2986". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+2986.
- ↑ "Distance Results for NGC 2986". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+2986.
- ↑ 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.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 2986". https://cseligman.com/text/atlas/ngc29a.htm#2986.
- ↑ Nakano, S.; Takamizawa, K.; Kushida, Y.; Kushida, R.; Filippenko, A. V.; Garnavich, P. (1999). "Supernova 1999gh in NGC 2986". International Astronomical Union Circular (7328): 1. Bibcode: 1999IAUC.7328....1N. http://www.cbat.eps.harvard.edu/iauc/07300/07328.html#Item1.
- ↑ "SN 1999gh". IAU. https://www.wis-tns.org/object/1999gh.
- ↑ "SN 2025gj". IAU. https://www.wis-tns.org/object/2025gj.
- ↑ "List of nearby galaxy groups". http://atunivers.free.fr/virgo/galaclus.html.
External links
- NGC 2986 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
09h 44m 16.0188s, −21° 16′ 40.924″
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