Astronomy:NGC 6970

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NGC 6970
NGC 6970 (below center) with LEDA 129695 (above center) imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationIndus
Right ascension 20h 52m 09.4808s[1]
Declination−48° 46′ 40.019″[1]
Redshift0.017525±0.0000870[1]
Helio radial velocity5,254±26 km/s[1]
Distance168.70 ± 16.58 Mly (51.725 ± 5.082 Mpc)[1]
Group or clusterNGC 7038 group (LGG 441)
Apparent magnitude (V)13.16[1]
Characteristics
TypeSB(rs)ab pec[1]
Size~82,700 ly (25.37 kpc) (estimated)[1]
Apparent size (V)1.4′ × 0.9′[1]
Other designations
ESO 235- G 008, IRAS 20486-4857, PGC 65608[1]

NGC 6970 is a barred spiral galaxy in the constellation of Indus. Its velocity with respect to the cosmic microwave background is 5,089±29 km/s, which corresponds to a Hubble distance of 244.8 ± 17.2 Mly (75.06 ± 5.28 Mpc).[1] However, four non-redshift measurements give a much closer mean distance of 168.70 ± 16.58 Mly (51.725 ± 5.082 Mpc).[2] It was discovered by British astronomer John Herschel on 2 October 1834.[3]

NGC 6970 is a Seyfert I 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]

NGC 7038 group

NGC 6970 is part of the NGC 7038 group (also known as LGG 441), which contains at least 13 galaxies, including NGC 6987, NGC 7014, NGC 7038 and nine galaxies in the ESO catalogue.[6][7]

Supernova

One supernova has been observed in NGC 6970:

  • SN 2025aard (Type Ib, mag. 18.304) was discovered by ATLAS on 17 October 2025.[8]

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 6970". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+6970. 
  2. ↑ "Distance Results for NGC 6970". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+6970. 
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 6970". https://cseligman.com/text/atlas/ngc69a.htm#6970. 
  4. ↑ Chen, Yan-Ping; Zaw, Ingyin; Farrar, Glennys R.; Elgamal, Sana (2022). "A Uniformly Selected, Southern-sky 6dF, Optical AGN Catalog". The Astrophysical Journal Supplement Series 258 (2): 29. doi:10.3847/1538-4365/ac4157. Bibcode: 2022ApJS..258...29C. 
  5. ↑ "NGC 6970". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+6970. 
  6. ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series 100: 47. Bibcode: 1993A&AS..100...47G. 
  7. ↑ "LGG 441". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=LGG+441. 
  8. ↑ "SN 2025aard". IAU. https://www.wis-tns.org/object/2025aard. 

Coordinates: Sky map 20h 52m 09.4808s, −48° 46′ 40.019″



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