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NGC 5364

Coordinates:Sky map13h56m12s,+05° 00′ 52″
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NGC5364
NGC 5364
NGC 5364 imaged with the 24-inch telescope atMount Lemmon Observatory
Observation data (J2000epoch)
ConstellationVirgo
Right ascension13h56m12.004s[1]
Declination+05° 00′ 52.06″[1]
Redshift1241 ± 4km/s[2]
Distance54.5 ± 3.9Mly(16.7 ± 1.2Mpc)[2]
Apparent magnitude(V)11.2[3]
Characteristics
TypeSA(rs)bc pec[4]
Apparent size(V)6′.1 × 6′.8[5]
Other designations
UGC8853,PGC49555, ZWG 46.9, IRAS13536+0515[6]

NGC 5364is agrand design spiral galaxylocated 54.5[2]millionlight yearsaway in theconstellationVirgo.It isinclinedto theline of sightfrom the Earth at an angle of 47° along aposition angleof 25°.[7]It is a member of theNGC 5364 Groupof galaxies, itself one of theVirgo III Groupsstrung out to the east of theVirgo Superclusterof galaxies.[8]

Structure[edit]

Sometimes called a "grand design", spiral galaxy, it is characterised by their prominent, well-defined arms, which circle outwards from a clear core (HST-image)

Themorphological classificationof NGC 5364 in theDe Vaucouleurssystem is SA(rs)bc pec,[4]which indicates it has an incomplete ring structure (rs) in the inner part of the galaxy with moderate to loosely wound arms (bc) and has a peculiar aspect (pec).[5]In particular, the appearance of the spiral arms is amorphous and asymmetrical compared to other galaxies with a similar classification.[4]A companion galaxy,NGC 5363,is located to the north of NGC 5364 and their gravitational interaction may be influencing the peculiar morphology of the latter.[2]

The mid-infrared emission in the nucleus appears weak compared to the spiral arms, suggesting a low rate of star formation in the core region.[4]The inner ring of this galaxy spans a diameter of 22 kly (6.7 kpc) and is located slightly off center with the northern side showing a stronger emission in thehydrogen alphaband compared to the southern half. MultipleH II regionslie along the spiral arms, tracing out their extent.[2]Each of the two main arms wrap all the way around the galaxy, although they display patchiness along much of their length.[5]

NGC designation[edit]

This object was discovered byWilliam Herschelon February 2, 1786, and later listed as NGC 5364. It was subsequently rediscovered byJohn Herschelon April 7, 1828, and later listed as NGC 5317.[9]

References[edit]

  1. ^abSkrutskie, 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.ISSN0004-6256.S2CID18913331.
  2. ^abcdeGrouchy, R. D.; et al. (June 2010), "Ring Star Formation Rates in Barred and Nonbarred Galaxies",The Astronomical Journal,139(6): 2465–2493,arXiv:1004.5063,Bibcode:2010AJ....139.2465G,doi:10.1088/0004-6256/139/6/2465,S2CID119099302.
  3. ^"NASA/IPAC Extragalactic Database".Results for NGC 5364.Retrieved2007-04-06.
  4. ^abcdBendo, George J.; et al. (June 2002), "An Infrared Space Observatory Atlas of Bright Spiral Galaxies",The Astronomical Journal,123(6): 3067–3107,Bibcode:2002AJ....123.3067B,doi:10.1086/340083.
  5. ^abcButa, Ronald J.; et al. (2007),Atlas of Galaxies,Cambridge University Press,pp. 13–17, 216,ISBN978-0-521-82048-6.
  6. ^Revised NGC Data for NGC 5317
  7. ^Kennicutt, R. C. Jr. (December 1981), "The shapes of spiral arms along the Hubble sequence",The Astronomical Journal,86:1847–1858,Bibcode:1981AJ.....86.1847K,doi:10.1086/113064.
  8. ^"The Virgo III Groups".Atlas of the Universe.Retrieved2010-11-27.
  9. ^Seligman, Courtney."NGC Objects: NGC 5350 - 5399".cseligman.com.Archived fromthe originalon 10 September 2015.Retrieved4 July2015.

External links[edit]