Astronomy:NGC 6181
From HandWiki
| 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] |
| Helio 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 | |
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
Gallery
-
NGC 6181 by the Sloan Digital Sky Survey
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "Results for object NGC 6181". NASA/IPAC. https://ned.ipac.caltech.edu/byname?objname=NGC+6181.
- ↑ "NGC 6181 (= PGC 57684)". http://cseligman.com/text/atlas/ngc61a.htm#6181.
- ↑ "Revised NGC Data for NGC 6081". http://spider.seds.org/ngc/revngcic.cgi?NGC6181.
- ↑ 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. doi:10.1086/125285. Bibcode: 1941PASP...53..125V.
- ↑ Transient Name Server entry for SN 1951I. Retrieved 25 March 2023.
- ↑ "SN 2019aai". IAU. https://www.wis-tns.org/object/2019aai.
External links
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