NGC 2672

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Wikipedia

NGC 2672
NGC 2672 (center) and NGC 2673 (left) imaged by SDSS
Observation data (J2000 epoch)
ConstellationCancer
Right ascension08h 49m 21.8884s[1]
Declination+19° 04′ 29.947″[1]
Redshift0.014487[1]
Heliocentric radial velocity4,343±10 km/s[1]
Distance221.8 ± 15.6 Mly (68.01 ± 4.77 Mpc)[1]
Group or clusterArp 167
Apparent magnitude (V)11.7[1]
Characteristics
TypeE1-2[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 closer 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]

Supernovae

Two supernovae have been observed in NGC 2672:

Other observations

On 29 January 1953 it was occulted by the Moon during a Total Lunar Eclipse (the January 1953 lunar eclipse) over the South Atlantic and extreme south of Africa.[10]: 160 

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 2672". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 19 December 2024.
  2. ↑ "Distance Results for NGC 2672". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 19 December 2024.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 2672". Celestial Atlas. Retrieved 19 December 2024.
  4. ↑ "NGC 2672". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 18 December 2024.
  5. ↑ 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.
  6. ↑ Arp, Halton (1966). "Atlas of Peculiar Galaxies". The Astrophysical Journal Supplement Series. 14: 1. Bibcode:1966ApJS...14....1A. doi:10.1086/190147.
  7. ↑ 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.
  8. ↑ "SN 1938B". Transient Name Server. IAU. Retrieved 19 December 2024.
  9. ↑ "SN 2025yla". Transient Name Server. IAU. Retrieved 29 September 2025.
  10. ↑ Meeus, Jan (2002). "Occultations of deep-sky objects during a total lunar eclipse". More Mathematical Astronomy Morsels (PDF). Willmann-Bell. pp. 157–162. ISBN 0943396743.
  • Media related to NGC 2672 at Wikimedia Commons
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