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NGC 5861
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| NGC 5861 | |
|---|---|
 NGC 5861 imaged by PanSTARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Libra |
| Right ascension | 15h 09m 16.0974s[1] |
| Declination | −11° 19′ 18.089″[1] |
| Redshift | 0.006174±0.000003[1] |
| Heliocentric radial velocity | 1,851±1 km/s[1] |
| Distance | 82.80 ± 2.64 Mly (25.387 ± 0.809 Mpc)[1] |
| Apparent magnitude (V) | 11.6 |
| Characteristics | |
| Type | SAB(rs)c [1] |
| Size | ~108,000 ly (33.11 kpc) (estimated)[1] |
| Apparent size (V) | 3.0′ × 1.7′[1] |
| Other designations | |
| IRAS 15065-1107, MCG -02-39-003, PGC 54097[1] | |
NGC 5861 is an intermediate spiral galaxy in constellation Libra. It is located at a distance of about 85 million light years from Earth, which, given its apparent dimensions, means that NGC 5861 is about 80,000 light years across.
The galaxy features two long spiral arms that dominate the optical disk.[2] The one arm can be traced from its beginning at the center for nearly one and a half revolutions without branching, whereas the other starts to form fragments after one revolution, forming a moderately chaotic pattern.[3] The galaxy hosts a hydroxyl megamaser.[4]
NGC 5861 is the foremost member of a small galaxy group that also includes NGC 5858, which lies 9.6 arcmin north, forming a non-interactive pair.[5] It is located within the same galaxy cloud with NGC 5878.[6]
Supernovae
[edit]Two supernovae have been observed in NGC 5861:
- SN 1971D (type unknown, mag. 15.5) was discovered by Glenn Jolly and Justus R. Dunlap on 24 February 1971.[7][8] Observations by Hubble Space Telescope indicate that possibly there is a light echo created by SN 1971D.[9]
- SN 2017erp (Type Ia, mag. 16.8) was discovered by Kōichi Itagaki on 13 June 2017.[10]
See also
[edit]References
[edit]- ^ a b c d e f g h i "Results for object NGC 5861". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 2016-01-18.
- ^ Block, David L.; Puerari, Ivânio; Stockton, Alan; Ferreira, Dewet (6 December 2012). Toward a New Millennium in Galaxy Morphology: From z=0 to the Lyman Break. Springer. p. 16. ISBN 978-9401141147.
- ^ Sandage, A.; Bedke, J. (1994). The Carnegie Atlas of Galaxies. Volume I. Carnegie Institution of Washington.
- ^ Darling, Jeremy; Giovanelli, Riccardo (July 2002). "A Search for OH Megamasers at z > 0.1. III. The Complete Survey". The Astrophysical Journal. 124 (1): 100–126. arXiv:astro-ph/0205185. Bibcode:2002AJ....124..100D. doi:10.1086/341166. S2CID 7340232.
- ^ de Vaucouleurs, G., de Vaucouleurs, A., and Corwin, H.G. (1976). Second Reference Catalogue of Bright Galaxies. Austin: University of Texas Press.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Makarov, Dmitry; Karachentsev, Igor (21 April 2011). "Galaxy groups and clouds in the local (z~ 0.01) Universe". Monthly Notices of the Royal Astronomical Society. 412 (4): 2498–2520. arXiv:1011.6277. Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x. S2CID 119194025.
- ^ Dunlap, J. R. (2 March 1971). "Supernovae". Central Bureau for Astronomical Telegrams. 2309. Smithsonian Astrophysical Observatory, IAU: 1. Retrieved 15 August 2025.
- ^ "SN 1971D". Transient Name Server. IAU. Retrieved 2 December 2024.
- ^ Boffi, F. R.; Sparks, W. B.; Macchetto, F. D. (15 August 1999). "A search for candidate light echoes: Photometry ofsupernova environments". Astronomy and Astrophysics Supplement Series. 138 (2): 253–266. arXiv:astro-ph/9906206. Bibcode:1999A&AS..138..253B. doi:10.1051/aas:1999274. S2CID 17688690. Retrieved 29 June 2017.
- ^ "SN 2017erp". Transient Name Server. IAU. Retrieved 2 December 2024.
External links
[edit]
Media related to NGC 5861 at Wikimedia Commons- NGC 5861 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
