NGC 2297
| NGC 2297 | |
|---|---|
NGC 2297 imaged by Legacy Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Pictor |
| Right ascension | 06h 44m 24.5585s[1] |
| Declination | −63° 43′ 02.443″[1] |
| Redshift | 0.011325±0.000110[1] |
| Heliocentric radial velocity | 3,395±33 km/s[1] |
| Distance | 168.4 ± 12.0 Mly (51.62 ± 3.68 Mpc)[1] |
| Group or cluster | [CHM2007] HDC 415 |
| Apparent magnitude (V) | 13.37[1] |
| Characteristics | |
| Type | SAB(rs)bc[1] |
| Size | ~104,300 ly (31.97 kpc) (estimated)[1] |
| Apparent size (V) | 1.4′ × 1.3′[1] |
| Other designations | |
| ESO 087- G 040, IRAS 06440-6339, 2MASS J06442460-6343026, PGC 19524[1] | |
NGC 2297 is an intermediate spiral galaxy in the constellation of Pictor. Its velocity with respect to the cosmic microwave background is 3,500±34 km/s, which corresponds to a Hubble distance of 168.4 ± 12.0 Mly (51.62 ± 3.68 Mpc).[1] It was discovered by British astronomer John Herschel on 31 January 1835.[2]
HDC 415 group
NGC 2297 is a member of a small group of galaxies known as [CHM2007] HDC 415. The other four galaxies in the group are NGC 2305, NGC 2307, ESO 87-38, and LEDA 326726.[3][4]
Supernovae
Two supernovae have been observed in NGC 2297:
- SN 2017ixh (Type Ic, mag. 17) was discovered by Patrick Pearl as part of the Backyard Observatory Supernova Search (BOSS) on 15 December 2017.[5][6]
- SN 2025yii (Type Ia, mag. 19.259) was discovered by ATLAS on 23 September 2025.[7]
See also
References
- ^ a b c d e f g h i j k "Results for object NGC 2297". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 28 November 2025.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 2297". Celestial Atlas. Retrieved 28 November 2025.
- ^ "[CHM2007] HDC 415". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 28 November 2025.
- ^ Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 790–813. arXiv:astro-ph/0610732. Bibcode:2007ApJ...655..790C. doi:10.1086/510201.
- ^ Pearl, Patrick; Bock, Greg; Marples, Peter; Parker, Stuart; Morrell, Nidia; Shappee, Ben; Drout, Maria (2017). "Discovery and spectral classification of SN 2017ixh in NGC2297". The Astronomer's Telegram. 11085: 1. Bibcode:2017ATel11085....1P.
- ^ "SN 2017ixh". Transient Name Server. IAU. Retrieved 28 November 2025.
- ^ "SN 2025yii". Transient Name Server. IAU. Retrieved 28 November 2025.
External links
- Media related to NGC 2297 at Wikimedia Commons
- NGC 2297 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images