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NGC 1570

From Wikipedia, the free encyclopedia
Galaxy in the constellation of Caelum
NGC 1570
Alegacy surveys image of NGC 1570.
Observation data (J2000.0epoch)
ConstellationCaelum
Right ascension04h 22m 08.93282s[1]
Declination−43° 37′ 46.4517″[1]
Redshift0.014760[2]
Heliocentric radial velocity4,392±84 km/s[2]
Distance199 Mly (60.9 Mpc)[3]
Group orclusterLDC 302[3]
Apparent magnitude (B)13.22[4]
Characteristics
TypeS0[5]
Mass297±149 (black hole)[6] M☉
Size108,000 ly (33,113 pc)[7]
Apparent size (V)1.037′ × 0.809′[8]
Other designations
NGC 1571,LEDA 14971,PGC 14971

NGC 1570, mistakenly calledNGC 1571, is a faintgalaxy located in the southernconstellationCaelum, the chisel. It has ablue magnitude of 13.2,[4] making it visible through a medium sizedtelescope. Based on aredshift of z = 0.014760,[2] the object is estimated to be 198million light years (60.9megaparsecs) away from theLocal Group.[3] It appears to be receding with a heliocentricradial velocity of4,392 km/s.[2]

NGC 1570 has agalaxy morphological classification of S0,[5] indicating that it is alenticular galaxy. It has also been catalogued as a peculiarelliptical galaxy. The centralblack hole has amass 297 times that of theSun.[9] It is estimated to be 8.9billion years old, younger than theMilky Way. The averageiron abundance of the galaxy is 135% that of theSun's. NGC 1570 is said to be round in shape, making it more likely to be an elliptical galaxy.[10]

The galaxy was first discovered bySir John Herschel in November 1835. A month later, he observed NGC 1570 again and mistakenly called it NGC 1571 due to imprecise coordinates. NGC 1570 is part of a smallgalaxy group called LDC 302.[3] It is the brightest member.

References

[edit]
  1. ^abVallenari, A.; et al. (Gaia collaboration) (2023)."Gaia Data Release 3. Summary of the content and survey properties".Astronomy and Astrophysics.674: A1.arXiv:2208.00211.Bibcode:2023A&A...674A...1G.doi:10.1051/0004-6361/202243940.S2CID 244398875. Gaia DR3 record for this source atVizieR.
  2. ^abcdPaturel, G.; Dubois, P.; Petit, C.; Woelfel, F. (2002). "Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003".LEDA: 0.Bibcode:2002LEDA.........0P.
  3. ^abcdCrook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (February 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.eISSN 1538-4357.ISSN 0004-637X.
  4. ^abLauberts, Andris; Valentijn, Edwin A. (1989).The surface photometry catalogue of the ESO-Uppsala galaxies.Bibcode:1989spce.book.....L.
  5. ^abLauberts, A. (1982).ESO/Uppsala survey of the ESO(B) atlas.Bibcode:1982euse.book.....L.
  6. ^Caramete, L. I.; Biermann, P. L. (October 2010)."The mass function of nearby black hole candidates".Astronomy and Astrophysics.521: A55.arXiv:0908.2764.Bibcode:2010A&A...521A..55C.doi:10.1051/0004-6361/200913146.eISSN 1432-0746.ISSN 0004-6361.
  7. ^Casasola, V.; Bettoni, D.; Galletta, G. (16 July 2004)."The gas content of peculiar galaxies: Strongly interacting systems".Astronomy and Astrophysics.422 (3):941–950.arXiv:astro-ph/0405112.Bibcode:2004A&A...422..941C.doi:10.1051/0004-6361:20040283.eISSN 1432-0746.ISSN 0004-6361.
  8. ^Skrutskie, M. F.; Cutri, R. M.; Stiening, R.; Weinberg, M. D.; Schneider, S.; Carpenter, J. M.; Beichman, C.; Capps, R.; Chester, T.; Elias, J.; Huchra, J.; Liebert, J.; Lonsdale, C.; Monet, D. G.; Price, S.; Seitzer, P.; Jarrett, T.; Kirkpatrick, J. D.; Gizis, J. E.; Howard, E.; Evans, T.; Fowler, J.; Fullmer, L.; Hurt, R.; Light, R.; Kopan, E. L.; Marsh, K. A.; McCallon, H. L.; Tam, R.; Van Dyk, S.; Wheelock, S. (February 2006)."The Two Micron All Sky Survey (2MASS)".The Astronomical Journal.131 (2):1163–1183.Bibcode:2006AJ....131.1163S.doi:10.1086/498708.eISSN 1538-3881.ISSN 0004-6256.
  9. ^Longhetti, M.; Rampazzo, R.; Bressan, A.; Chiosi, C. (June 1998)."Star formation history of early-type galaxies in low density environments".Astronomy and Astrophysics Supplement Series.130 (2):251–265.arXiv:astro-ph/9910032.Bibcode:1998A&AS..130..251L.doi:10.1051/aas:1998410.eISSN 1286-4846.ISSN 0365-0138.
  10. ^Sinnott, Roger W. (1988).NGC 2000.0: The Complete New General Catalogue and Index Catalogues of Nebulae and Star Clusters by J. L. E. Dreyer.Bibcode:1988cngc.book.....S.
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