NGC 2672
| NGC 2672 | |
|---|---|
 NGC 2672 (center) and NGC 2673 (left) imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Cancer |
| Right ascension | 08h 49m 21.8884s[1] |
| Declination | +19° 04′ 29.947″[1] |
| Redshift | 0.014487[1] |
| Heliocentric radial velocity | 4,343±10 km/s[1] |
| Distance | 221.8 ± 15.6 Mly (68.01 ± 4.77 Mpc)[1] |
| Group or cluster | Arp 167 |
| Apparent magnitude (V) | 11.7[1] |
| Characteristics | |
| Type | E1-2[1] |
| Size | ~162,200 ly (49.74 kpc) (estimated)[1] |
| Apparent size (V) | 3.0′ × 2.8′[1] |
| Other designations | |
| HOLM 99A, Arp 167, UGC 4619, MCG +03-23-010, PGC 24790, CGCG 090-019 NED01, KPG 175A[1] | |
NGC 2672 is a elliptical galaxy in the constellation of Cancer. Its velocity with respect to the cosmic microwave background is 4,611±21 km/s, which corresponds to a Hubble distance of 221.8 ± 15.6 Mly (68.01 ± 4.77 Mpc).[1] Additionally, 11 non-redshift measurements give a distance of 188.93 ± 19.72 Mly (57.927 ± 6.045 Mpc).[2] It was discovered by German-British astronomer William Herschel on 14 March 1784.[3]
The SIMBAD database lists NGC 2672 as an Active Galaxy Nucleus Candidate, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[4]
NGC 2672 is listed with the galaxy NGC 2673 as Holm 99 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.[5] These two galaxies are also listed in Halton Arp's Atlas of Peculiar Galaxies as Arp 167, with the description "Comp. galaxy very condensed, has curved plume."[6] Another study indicates that the two galaxies are interacting and NGC 2673 has two tidal plumes, while NGC 2672 is only weakly disturbed.[7]
Supernova
One supernova has been observed in NGC 2672: SN 1938B (type unknown, mag. 15.5) was discovered by Arno Wachmann in 1938.[8]
See also
References
- ^ a b c d e f g h i j k "Results for object NGC 2672". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 19 December 2024.
- ^ "Distance Results for NGC 2672". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 19 December 2024.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 2672". Celestial Atlas. Retrieved 19 December 2024.
- ^ "NGC 2672". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 18 December 2024.
- ^ Holmberg, Erik (1937). "A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems". Annals of the Observatory of Lund. 6: 1. Bibcode:1937AnLun...6....1H.
- ^ Arp, Halton (1966). "Atlas of Peculiar Galaxies". The Astrophysical Journal Supplement Series. 14: 1. Bibcode:1966ApJS...14....1A. doi:10.1086/190147.
- ^ Balcells, Marc; Borne, Kirk D.; Hoessel, John G. (1989). "Interacting Binary Galaxies. VI. The Fast Encounter of NGC 2672 and NGC 2673 (Karachentsev 175, ARP 167)". The Astrophysical Journal. 336: 655. Bibcode:1989ApJ...336..655B. doi:10.1086/167041.
- ^ "SN 1938B". Transient Name Server. IAU. Retrieved 19 December 2024.
External links
Media related to NGC 2672 at Wikimedia Commons- NGC 2672 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
