V Coronae Borealis: Difference between revisions
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{{Short description|Mira-type long period variable star in the constellation Corona Borealis}} |
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|constell= [[Corona Borealis]] |
|constell= [[Corona Borealis]] |
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| names = [[Durchmusterung|BD]]+40° 2929, [[Henry Draper Catalogue|HD]] 141826, [[Hipparcos catalogue|HIP]] 77501, [[SAO Catalogue|SAO]] 64929 |
| names = [[Durchmusterung|BD]]+40° 2929, [[Henry Draper Catalogue|HD]] 141826, [[Hipparcos catalogue|HIP]] 77501, [[SAO Catalogue|SAO]] 64929 |
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[[File:VCrBLightCurve.png|thumb|right|The [[Photometric_system#Photometric_letters|visual band]] [[light curve]] of V Coronae Borealis, from AAVSO data<ref name="aavso"/>]] |
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'''V Coronae Borealis''' ('''V CrB''') is a [[Mira variable|Mira-type]] long period [[variable star]] and [[carbon star]] in the [[constellation]] [[Corona Borealis]]. Its [[apparent magnitude]] varies between 6.9 and 12.6 over a period of 357 days<ref name="AAVSO">{{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=10604 |title=V Coronae Borealis|author=VSX|date=4 January 2010|work=AAVSO Website|publisher=[[American Association of Variable Star Observers]]|access-date=13 November 2014}}</ref> |
'''V Coronae Borealis''' ('''V CrB''') is a [[Mira variable|Mira-type]] long period [[variable star]] and [[carbon star]] in the [[constellation]] [[Corona Borealis]]. Its [[apparent magnitude]] varies between 6.9 and 12.6 over a period of 357 days<ref name="AAVSO">{{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=10604 |title=V Coronae Borealis|author=VSX|date=4 January 2010|work=AAVSO Website|publisher=[[American Association of Variable Star Observers]]|access-date=13 November 2014}}</ref> |
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==References== |
==References== |
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{{reflist |
{{reflist|refs= |
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<ref name="aavso">{{cite web |title=Download Data |url=https://www.aavso.org/data-download |website=aavso.org |publisher=AAVSO |access-date=1 October 2021}}</ref> |
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{{Stars of Corona Borealis}} |
{{Stars of Corona Borealis}} |
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{{DEFAULTSORT:V Coronae Borealis}} |
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[[Category:Corona Borealis]] |
[[Category:Corona Borealis]] |
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[[Category:Mira variables]] |
[[Category:Mira variables]] |
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Latest revision as of 23:27, 5 October 2021
 V Coronae Borealis in optical light | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Corona Borealis |
| Right ascension | 15h 49m 31.31093s [1] |
| Declination | +39° 34′ 17.9111″ [1] |
| Spectral type | C6,2e(N2e)[2] |
| Other designations | |
V Coronae Borealis (V CrB) is a Mira-type long period variable star and carbon star in the constellation Corona Borealis. Its apparent magnitude varies between 6.9 and 12.6 over a period of 357 days[2]
V Coronae Borealis is too far from Earth for its parallax to be measured effectively. Basing on a period of 357 days, the absolute magnitude of V Coronae Borealis has been calculated to be -4.62.[4] It was estimated to around 8810 light-years distant in a 2012 paper, shining with a luminosity approximately 102831 times that of the Sun and has a surface temperature of 2877 K.[5]
References
[edit]- ^ a b "V Coronae Borealis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 13 November 2014.
- ^ a b VSX (4 January 2010). "V Coronae Borealis". AAVSO Website. American Association of Variable Star Observers. Retrieved 13 November 2014.
- ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
- ^ Guandalini, R.; Cristallo, S. (2013). "Luminosities of carbon-rich asymptotic giant branch stars in the Milky Way". Astronomy & Astrophysics. 555: 7. arXiv:1305.4203. Bibcode:2013A&A...555A.120G. doi:10.1051/0004-6361/201321225. S2CID 54918450. A120.
- ^ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID 118665352.
{{cite journal}}: CS1 maint: unflagged free DOI (link)
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