Astronomy:NGC 6754

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NGC 6754
NGC 6754 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationTelescopium
Right ascension 19h 11m 25.7664s[1]
Declination−50° 38′ 31.397″[1]
Redshift0.010864[1]
Helio radial velocity3257 ± 10 km/s[1]
Distance152.8 ± 10.7 Mly (46.84 ± 3.29 Mpc)[1]
Apparent magnitude (V)12.1[1]
Characteristics
TypeSB(rs)b[1]
Size~143,500 ly (43.99 kpc) (estimated)[1]
Apparent size (V)1.8′ × 0.9′[1]
Other designations
ESO 231- G 025, IRAS 19075-5043, PGC 62871[1]

NGC 6754 is a barred spiral galaxy in the constellation of Telescopium. Its velocity with respect to the cosmic microwave background is 3176 ± 11 km/s, which corresponds to a Hubble distance of 152.8 ± 10.7 Mly (46.84 ± 3.29 Mpc).[1] Additionally, 10 non-redshift measurements give a closer distance of 137.15 ± 4.19 Mly (42.05 ± 1.285 Mpc).[2] It was discovered by British astronomer John Herschel on 8 July 1834.[3]

According to the SIMBAD database, NGC 6754 is 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]

Supernovae

Four supernovae have been observed in NGC 6754:

  • SN 1998X (Type II, mag. 17) was discovered by the Perth Astronomical Research Group on 13 March 1998.[5][6]
  • SN 1998dq (Type Ia, mag. 14.3) was discovered by Brett White on 23 August 1998.[7][8]
  • SN 2000do (Type Ia, mag. 15.6) was discovered by Brett White on 30 September 2000.[9][10]
  • SN 2005cu (Type II, mag. 16.1) was discovered by Berto Monard on 10 July 2005.[11][12]

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 6754". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+6754. 
  2. ↑ "Distance Results for NGC 6754". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+6754. 
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 6754". https://cseligman.com/text/atlas/ngc67a.htm#6754. 
  4. ↑ "NGC 6754". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+6754. 
  5. ↑ Woodings, S.; Martin, R.; Williams, A.; Patat, F.; Della Valle, M. (1998). "Supernova 1998X in NGC 6754". International Astronomical Union Circular (6847): 1. Bibcode: 1998IAUC.6847....1W. http://www.cbat.eps.harvard.edu/iauc/06800/06847.html#Item1. 
  6. ↑ "SN 1998X". IAU. https://www.wis-tns.org/object/1998X. 
  7. ↑ White, B.; Evans, R.; Schmidt, B.; Dobosz, T.; Crook, B.; Gutierrez, A. (1998). "Supernova 1998dq in NGC 6754". International Astronomical Union Circular (6998): 1. Bibcode: 1998IAUC.6998....1W. http://www.cbat.eps.harvard.edu/iauc/06900/06998.html#Item1. 
  8. ↑ "SN 1998dq". IAU. https://www.wis-tns.org/object/1998dq. 
  9. ↑ White, B.; Evans, R.; Bembrick, C.; White, G. L.; Dobosz, T. (2000). "Supernova 2000do in NGC 6754". International Astronomical Union Circular (7500): 1. Bibcode: 2000IAUC.7500....1W. http://www.cbat.eps.harvard.edu/iauc/07500/07500.html#Item1. 
  10. ↑ "SN 2000do". IAU. https://www.wis-tns.org/object/2000do. 
  11. ↑ Monard, L. A. G. (2005). "Supernova 2005cu in NGC 6754". International Astronomical Union Circular (8562): 1. Bibcode: 2005IAUC.8562....1M. http://www.cbat.eps.harvard.edu/iauc/08500/08562.html#Item1. 
  12. ↑ "SN 2005cu". IAU. https://www.wis-tns.org/object/2005cu. 



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