NGC 3206

NGC 3206
NGC 3206 imaged by SDSS
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension10h 21m 47.5192s[1]
Declination+56° 55′ 49.404″[1]
Redshift0.003839 [1]
Heliocentric radial velocity1151 ± 1 km/s[1]
Distance63.0 ± 4.4 Mly (19.31 ± 1.36 Mpc)[1]
Group or clusterNGC 3264 Group (LGG 201)
Apparent magnitude (V)11.9[1]
Characteristics
TypeSB(s)cd[1]
Size~50,000 ly (15.34 kpc) (estimated)[1]
Apparent size (V)2.9′ × 1.9′[1]
Other designations
IRAS 10184+5710, 2MASX J10214758+5655494, UGC 5589, MCG +10-15-069, PGC 30322, CGCG 290-030[1]

NGC 3206 is a barred spiral galaxy in the constellation of Ursa Major. Its velocity with respect to the cosmic microwave background is 1309 ± 11 km/s, which corresponds to a Hubble distance of 19.31 ± 1.36 Mpc (~63 million light-years).[1] In addition, 11 non redshift measurements give a distance of 17.582 ± 1.088 Mpc (~57.3 million light-years).[2] The galaxy was discovered by German-British astronomer William Herschel on 8 April 1793.[3]

According to the SIMBAD database, NGC 3206 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]

NGC 3264 Group

NGC 3206 is part of the NGC 3264 group (also known as LGG 201), which includes at least five other members: NGC 3220, NGC 3264, NGC 3353, UGC 5848 [d], and UGCA 211 [d].[5]

Supernova

One supernova has been observed in NGC 3206: American amateur astronomer Patrick Wiggins discovered SN 2024bch (Type II, mag. 16.1) on 29 January 2024.[6] Later analysis suggested that the supernova was Type IIn-L with a red supergiant progenitor.[7]

See also

References

  1. ^ a b c d e f g h i j k "Results for object NGC 3206". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 15 August 2024.
  2. ^ "Distance Results for NGC 3206". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 15 August 2024.
  3. ^ Seligman, Courtney. "NGC 3206". Celestial Atlas. Retrieved 15 August 2024.
  4. ^ "NGC 3206". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 17 December 2024.
  5. ^ 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.
  6. ^ "SN 2024bch". Transient Name Server. IAU. Retrieved 15 August 2024.
  7. ^ Abe, K.; et al. (2025). "Constraining the TeV gamma-ray emission of SN 2024bch, a possible type IIn-L from a red supergiant progenitor: Multiwavelength observations and analysis of the progenitor". Astronomy and Astrophysics. 702. arXiv:2508.20048. Bibcode:2025A&A...702A.125A. doi:10.1051/0004-6361/202554721.
  • Wikimedia Commons logo Media related to NGC 3206 at Wikimedia Commons
  • NGC 3206 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

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