NGC 972 - Misplaced Pages

Spiral galaxy in the constellation Aries

NGC 972
NGC 972 taken by Hubble Space Telescope.
Observation data (J2000 epoch)
Constellation	Aries
Right ascension	02 34 13.385
Declination	+29° 18′ 40.47″
Redshift	0.005147
Heliocentric radial velocity	1,541 km/s
Distance	49.8 Mly (15.28 Mpc)
Apparent magnitude (B)	12.1
Characteristics
Type	Sb or Sd
Mass	1.2×10 M_☉ `M`_☉
Apparent size (V)	10 arcmin
Other designations
LEDA 9788, MCG+05-07-010, UGC 2045

NGC 972 is a dusty spiral galaxy in the northern constellation of Aries, located at an approximate distance of 49.8 Mly from the Milky Way. It was discovered in 1784 by William Herschel. The galactic features suggest it may have undergone a merger with a gas-rich companion, giving it asymmetrical arms, plus starburst activity in the nucleus and an off-planar nuclear ring. The inner 3.6 kpc of the galaxy is undergoing star formation at the rate of 2.1–2.7 M_☉·yr, but it lacks a nuclear bulge.

On October 16, 2008, a possible supernova event was observed about 16.2″ west and 19.5″ north of the Galactic Center. It reached magnitude 14.7 in the infrared K' band, but only a possible very faint transient event was observed in the visual frequency range, most likely as a result of strong extinction.

The group of galaxies around NGC 972 is sometimes referred to as the "NGC 972 group," which includes NGC 1012, NGC 1056, UGC 1958, UGC 2017, UGC 2053, and UGC 2221.

References

"In Bloom". www.spacetelescope.org. Retrieved 1 July 2019.
^ "NGC 972". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-04-05.
^ Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
^ Tully, R. Brent; et al. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862. 50.
^ Mayya, Y. D.; et al. (October 1998). "Near-Infrared and Optical Morphology of the Dusty Galaxy NGC 972". The Astronomical Journal. 116 (4): 1671–1678. arXiv:astro-ph/9808008. Bibcode:1998AJ....116.1671M. doi:10.1086/300574. S2CID 11991856.
"The galaxy NGC 972". In-The-Sky.org.
Ravindranath, Swara; Prabhu, Tushar P. (June 1998). "Massive Star Formation in the Infrared-bright Galaxy NGC 972". The Astronomical Journal. 115 (6): 2320–2330. Bibcode:1998AJ....115.2320R. doi:10.1086/300355.
Dudley, C. C.; et al. (October 2008). Green, D. W. E. (ed.). "Possible Reddened Supernovae in NGC 972 and NGC 5900". IAU Circular. 8992: 1. Bibcode:2008IAUC.8992....1D.
Vennik, J.; Richter, G. M. (1994). "Surface Photometry of Low-Surface-Brightness Galaxies in the Area of the NGC 972 Group of Galaxies". Symposium - International Astronomical Union. 161: 553–555. doi:10.1017/S0074180900048075. ISSN 0074-1809.
Vennik, J.; Richter, G. M. (1994). "Photometry of groups of galaxies. II. The NGC 972 group". Astronomische Nachrichten. 315 (3): 245–251. Bibcode:1994AN....315..245V. doi:10.1002/asna.2103150306. ISSN 1521-3994.

External links

Media related to NGC 972 at Wikimedia Commons
NGC 972 on SIMBAD

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Constellation of Aries

Stars

Bayer	α (Hamal) β (Sheratan) γ (Mesarthim) δ (Botein) ε ζ η θ ι κ λ μ ν ξ ο π ρ ρ ρ σ τ τ
Flamsteed	1 4 7 10 11 14 15 16 19 20 21 23 26 27 29 30 31 33 35 36 38 39 (Lilii Borea) 40 41 (Bharani) 47 49 50 51 52 53 54 55 56 59 60 62 64 65 66 54 Cet 85 Cet
Variable	TZ UX VZ (16 Tri)
HR	577 728 803 952 999
HD	12661 20367
Other	BD+20°307 HIP 14810 HAT-P-25 Teegarden's Star WASP-11/HAT-P-10 WD 0145+234

Exoplanets	α Arietis b HD 12661 b c HIP 14810 b c d Teegarden's Star b c WASP-11b/HAT-P-10b

Galaxies

NGC	677 680 691 694 695 716 765 770 772 781 803 817 820 821 871 877 900 901 903 904 918 935 938 972 990 992 1024 1134 1156
Other	1ES 0229+200 3C 79 4C +28.07 AO 0235+164 IC 167 IC 1801 PSO J0309+27 Segue 2 UGC 2140

Galaxy clusters	MS 0302+17

Astronomical events	GRB 060218