NGC 6181

NGC 6181
NGC 6181 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Hercules
Right ascension	16h 32m 20.9715s [1]
Declination	+19° 49′ 34.972″ [1]
Redshift	0.007909 [1]
Heliocentric radial velocity	2371±1 km/s [1]
Galactocentric velocity	2415±3 km/s [1]
Distance	116.2 ± 8.1  Mly (35.63 ± 2.49  Mpc) [1]
Apparent magnitude  (V)	10.42
Absolute magnitude  (V)	-22.14
Characteristics
Type	SAB(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

• List of NGC objects (6001–7000)

Gallery

• 
  NGC 6181 by the Sloan Digital Sky Survey

References

1. "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.

External links

• Media related to NGC 6181 at Wikimedia Commons