Astronomy:NGC 6389

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NGC 6389
NGC 6389 imaged by Pan-STARRS
Observation data (J2000 epoch)
ConstellationHercules
Right ascension 17h 32m 39.7745s[1]
Declination+16° 24′ 06.604″[1]
Redshift0.010392±0.00000100[1]
Helio radial velocity3,115±0 km/s[1]
Distance163.60 ± 27.49 Mly (50.160 ± 8.428 Mpc)[1]
Apparent magnitude (V)12.82[1]
Characteristics
TypeSbc[1]
Size~152,300 ly (46.69 kpc) (estimated)[1]
Apparent size (V)2.8′ × 1.9′[1]
Other designations
IRAS 17304+1626, UGC 10893, MCG+03-45-001, PGC 60466[1]

NGC 6389 is a spiral galaxy in the constellation of Hercules. Its velocity with respect to the cosmic microwave background is 3,071±3 km/s, which corresponds to a Hubble distance of 147.7 ± 10.3 Mly (45.29 ± 3.17 Mpc).[1] However, five non-redshift measurements give a farther mean distance of 163.60 ± 27.49 Mly (50.160 ± 8.428 Mpc).[2] It was discovered by German-British astronomer William Herschel on 29 June 1799.[3][4]

NGC 6389 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.[5]

Supernovae

Two supernovae have been observed in NGC 6389:

  • SN 1992ab (Type II, mag. 17) was discovered by Jean Mueller on 1 June 1992.[6][7]
  • SN 2000M (Type II, mag. 16.5) was discovered by Marco Migliardi during the Col Druscie Remote Observatory Supernova Search (CROSS), on 27 February 2000.[8][9]

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 6389". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+6389. 
  2. ↑ "Distance Results for NGC 6389". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+6389. 
  3. ↑ Herschel, William (1802). "Catalogue of 500 New Nebulae, Nebulous Stars, Planetary Nebulae, and Clusters of Stars; with Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London 92: 477–528. doi:10.1098/rstl.1802.0021. Bibcode: 1802RSPT...92..477H. 
  4. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 6389". https://cseligman.com/text/atlas/ngc63a.htm#6389. 
  5. ↑ "NGC 6389". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+6389. 
  6. ↑ Brewer, C.; Mendenhall, J. D.; Mueller, J.; Ashby, M.; Houck, J. R. (1992-06-04). "Supernova 1992ab in NGC 6389". International Astronomical Union Circular (5534): 2. Bibcode: 1992IAUC.5534....2B. http://www.cbat.eps.harvard.edu/iauc/05500/05534.html#Item2. 
  7. ↑ "SN 1992ab". IAU. https://www.wis-tns.org/object/1992ab. 
  8. ↑ Dimai, A.; Migliardi, M.; Yamaoka, H.; Li, W. (2000-03-01). "Supernova 2000M in NGC 6389". International Astronomical Union Circular (7373): 1. Bibcode: 2000IAUC.7373....1D. http://www.cbat.eps.harvard.edu/iauc/07300/07373.html#Item1. 
  9. ↑ "SN 2000M". IAU. https://www.wis-tns.org/object/2000M. 

Coordinates: Sky map 17h 32m 39.7745s, +16° 24′ 06.604″



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