Astronomy:NGC 5185

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NGC 5185
NGC 5185 imaged by SDSS
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension 13h 30m 02.2642s[1]
Declination+13° 24′ 57.757″[1]
Redshift0.024679±0.0000110[1]
Helio radial velocity7,399±3 km/s[1]
Distance374.23 ± 10.11 Mly (114.738 ± 3.101 Mpc)[1]
Group or clusterLDC 985
Apparent magnitude (V)14.3g[1]
Characteristics
TypeSb[1]
Size~220,400 ly (67.59 kpc) (estimated)[1]
Apparent size (V)0.88′ × 0.68′[1]
Other designations
IRAS F13276+1340, UGC 8488, MCG+02-34-025, PGC 47422[1]

NGC 5185 is a spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 7,683±20 km/s, which corresponds to a Hubble distance of 369.6 ± 25.9 Mly (113.32 ± 7.94 Mpc).[1] Additionally, 16 non-redshift measurements give a similar mean distance of 374.23 ± 10.11 Mly (114.738 ± 3.101 Mpc).[2] It was discovered by German-British astronomer William Herschel on 19 March 1787.[3]

NGC 5185 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5]

LDC 985 Group

NGC 5185 is a member of a group of galaxies known as LDC 985. The other five galaxies in the group are NGC 5181 (fr), NGC 5207 (fr), NGC 5221, NGC 5222 (fr), NGC 5230.[6][7]

Supernovae

Three supernovae have been observed in NGC 5185:

  • SN 2006br (Type Ia, mag. 17.8) was discovered by Tim Puckett and G. Sostero on 25 April 2006.[8][9]
  • SN 2006dz (type unknown, mag. 20.0) was discovered by the Carnegie Supernova Project on 31 May 2006.[10][11][12]
  • SN 2021gvm (Type II, mag. 19.5747) was discovered by the Zwicky Transient Facility on 21 March 2021.[13]

See also

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 5185". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+5185. 
  2. ↑ "Distance Results for NGC 5185". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+5185. 
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5185". https://cseligman.com/text/atlas/ngc51a.htm#5185. 
  4. ↑ Toba, Y.; Oyabu, S.; Matsuhara, H.; Malkan, M. A.; Gandhi, P.; Nakagawa, T.; Isobe, N.; Shirahata, M. et al. (2014). "Luminosity and Redshift Dependence of the Covering Factor of Active Galactic Nuclei viewed with WISE and Sloan Digital Sky Survey". The Astrophysical Journal 788 (1): 45. doi:10.1088/0004-637X/788/1/45. Bibcode: 2014ApJ...788...45T. 
  5. ↑ "NGC 5185". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+5185. 
  6. ↑ Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal 655 (2): 790–813. doi:10.1086/510201. Bibcode: 2007ApJ...655..790C. 
  7. ↑ "[CHM2007 LDC 985"]. SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=%5BCHM2007%5D+LDC+985. 
  8. ↑ Puckett, T.; Pelloni, A.; Sostero, G.; Sehgal, A.; Gagliano, R.; Luckas, P.; Trondal, O.; Schwartz, M. et al. (2006). "Supernovae 2006bq-2006bx". International Astronomical Union Circular (8705): 1. Bibcode: 2006IAUC.8705....1P. http://www.cbat.eps.harvard.edu/iauc/08700/08705.html#Item1. 
  9. ↑ "SN 2006br". IAU. https://www.wis-tns.org/object/2006br. 
  10. ↑ Contreras, C.; Folatelli, G. (2006). "Supernova 2006dz in NGC 5185". Central Bureau Electronic Telegrams (588): 1. Bibcode: 2006CBET..588....1C. http://www.cbat.eps.harvard.edu/iau/cbet/000500/CBET000588.txt. 
  11. ↑ Itagaki, K.; Nakano, S.; Contreras, C.; Folatelli, G.; Joubert, N.; Madison, D.; Winslow, D.; Li, W. et al. (2006). "Supernovae 2006du, 2006dx, 2006dy, 2006dz, 2006ea, 2006eb, 2006ec". International Astronomical Union Circular (8736): 1. Bibcode: 2006IAUC.8736....1I. http://www.cbat.eps.harvard.edu/iauc/08700/08736.html#Item1. 
  12. ↑ "SN 2006dz". IAU. https://www.wis-tns.org/object/2006dz. 
  13. ↑ "SN 2021gvm". IAU. https://www.wis-tns.org/object/2021gvm. 

Coordinates: Sky map 13h 30m 02.2642s, +13° 24′ 57.757″



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