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
[edit]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
[edit]Gallery
[edit]-
NGC 6181 by the Sloan Digital Sky Survey
References
[edit]- ^ a b c d e f g h i "Results for object NGC 6181". NASA/IPAC extragalactic database. NASA/IPAC. Retrieved 3 October 2015.
- ^ "NGC 6181 (= PGC 57684)". cseligman. Retrieved 3 October 2015.
- ^ "Revised NGC Data for NGC 6081". Seds. Retrieved 3 October 2015.
- ^ Transient Name Server entry for SN 1926B. Retrieved 28 March 2023.
- ^ Central Bureau for Astronomical Telegrams list of Supernovae. Retrieved 28 March 2023.
- ^ 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.
- ^ Transient Name Server entry for SN 1951I. Retrieved 25 March 2023.
- ^ "SN 2019aai". Transient Name Server. IAU. Retrieved 6 September 2024.
External links
[edit]
Media related to NGC 6181 at Wikimedia Commons
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