NGC 2986
| 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] |
| Heliocentric 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, 2MASX J09441604-2116418, UGCA 178, 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
[edit]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
[edit]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
[edit]References
[edit]- ^ a b c d e f g h i j k "Results for object NGC 2986". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 3 July 2025.
- ^ "Distance Results for NGC 2986". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 3 July 2025.
- ^ Herschel, W. (1786). "Catalogue of One Thousand New Nebulae and Clusters of Stars" (PDF). Philosophical Transactions of the Royal Society of London. 76: 457–499. Bibcode:1786RSPT...76..457H. doi:10.1098/rstl.1786.0027.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 2986". Celestial Atlas. Retrieved 3 July 2025.
- ^ 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.
- ^ "SN 1999gh". Transient Name Server. IAU. Retrieved 3 July 2025.
- ^ "SN 2025gj". Transient Name Server. IAU. Retrieved 3 July 2025.
- ^ "List of nearby galaxy groups". atunivers.free.fr. Retrieved 3 July 2025.
External links
[edit]
Media related to NGC 2986 at Wikimedia Commons- NGC 2986 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
