NGC 6181

NGC 6181
NGC 6181 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationHercules
Right ascension16h 32m 20.9715s[1]
Declination+19° 49′ 34.972″[1]
Redshift0.007909[1]
Heliocentric radial velocity2371±1 km/s[1]
Galactocentric velocity2415±3 km/s[1]
Distance116.2 ± 8.1 Mly (35.63 ± 2.49 Mpc)[1]
Apparent magnitude (V)10.42
Absolute magnitude (V)-22.14
Characteristics
TypeSAB(rs)c[1]
Size~78,000 ly (23.93 kpc) (estimated)[1]
Apparent size (V)2.50′ × 1.1′
Other designations
IRAS 16301+1955, UGC 10439, MCG +03-42-020, PGC 58470, CGCG 109-031
References: NASA/IPAC extragalactic datatbase, http://spider.seds.org/, http://cseligman.com

NGC 6181 is a barred spiral galaxy located in the constellation Hercules. It is designated as SB(rs)c in the galaxy morphological classification scheme and was discovered by William Herschel on 28 April 1788.[2] The galaxy is 107 million light years away.[1][3]

Supernovae

Three supernovae have been observed in NGC 6181:

  • SN 1926B (type unknown, mag. 14.8)[4][5] was discovered by Adriaan van Maanen on a photographic plate taken on 17 June 1926, but the discovery was not made until February 1941.[6]
  • SN 1951I (type unknown, mag. 15.7)[7] was discovered in April 1951.
  • SN 2019aai (type II, mag. 17.84)[8] was discovered by the Zwicky Transient Facility on 20 January 2019.

See also

References

  1. ^ a b c d e f g h i "Results for object NGC 6181". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 3 October 2015.
  2. ^ "NGC 6181 (= PGC 57684)". cseligman. Retrieved 3 October 2015.
  3. ^ "Revised NGC Data for NGC 6081". Seds. Retrieved 3 October 2015.
  4. ^ Transient Name Server entry for SN 1926B. Retrieved 28 March 2023.
  5. ^ Central Bureau for Astronomical Telegrams list of Supernovae. Retrieved 28 March 2023.
  6. ^ Van Maanen, A. (1941). "Supernova in NGC 6181". Publications of the Astronomical Society of the Pacific. 53 (312): 125. Bibcode:1941PASP...53..125V. doi:10.1086/125285.
  7. ^ Transient Name Server entry for SN 1951I. Retrieved 25 March 2023.
  8. ^ "SN 2019aai". Transient Name Server. IAU. Retrieved 6 September 2024.
  • Media related to NGC 6181 at Wikimedia Commons
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