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|equinox=J2000.0
|equinox=J2000.0
|constell=[[Taurus (constellation)|Taurus]]
|constell=[[Taurus (constellation)|Taurus]]
|ra={{RA|04|33|10.033}}
|ra={{RA|04|33|10.033}}<ref name=2mass/>
|dec={{Dec|+24|33|43.38}}
|dec={{Dec|+24|33|43.38}}<ref name=2mass/>
|appmag_v=12.08 - 12.37<ref name=gcvs/>
|appmag_v=12.08 - 12.37<ref name=gcvs/>
}}
}}
{{Starbox character
{{Starbox character
|class=M0-1
|class=M0-1<ref name=starspots/>
|variable=[[BY Draconis variable|BY Dra]]<ref name=gcvs/>
|variable=[[BY Draconis variable|BY Dra]]<ref name=gcvs/>
}}
}}
{{Starbox astrometry
{{Starbox astrometry
|dist_pc=131
|dist_pc=131<ref name=donati/>
|dist_ly=427
|dist_ly=427
}}
}}
{{Starbox detail
{{Starbox detail
|source=<ref name=donati/>
|mass=1
|mass=1.00 ± 0.05
⚫
|radius=2
|luminosity=1.2
⚫
|temperature=4250
⚫
|radius=2.0 ± 0.2
⚫
|age_myr=2
⚫
|temperature=4,250 ± 50
|rotational_velocity=30.5 ± 0.5
|rotation=2.741 days
⚫
|age_myr=~2
}}
}}
{{Starbox catalogue
{{Starbox catalogue
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== References ==
== References ==
{{Reflist|refs=
{{Reflist|refs=

<ref name=donati>{{cite journal|bibcode=2016Natur.534..662D|arxiv=1606.06236|title=A hot Jupiter orbiting a 2-million-year-old solar-mass T Tauri star|journal=Nature|volume=534|issue=7609|pages=662|author1=Donati|first1=J. F.|last2=Moutou|first2=C.|last3=Malo|first3=L.|last4=Baruteau|first4=C.|last5=Yu|first5=L.|last6=Hébrard|first6=E.|last7=Hussain|first7=G.|last8=Alencar|first8=S.|last9=Ménard|first9=F.|last10=Bouvier|first10=J.|last11=Petit|first11=P.|last12=Takami|first12=M.|last13=Doyon|first13=R.|last14=Cameron|first14=A. Collier|year=2016|doi=10.1038/nature18305|pmid=27324847}}</ref>


<ref name=":0">{{Cite web|url=http://exoplanet.eu/catalog/v830_tau_b/|title=The Extrasolar Planet Encyclopaedia — V830 Tau b|website=exoplanet.eu|access-date=2017-07-30}}</ref>
<ref name=":0">{{Cite web|url=http://exoplanet.eu/catalog/v830_tau_b/|title=The Extrasolar Planet Encyclopaedia — V830 Tau b|website=exoplanet.eu|access-date=2017-07-30}}</ref>
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<ref name=gcvs>{{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}</ref>
<ref name=gcvs>{{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}</ref>

<ref name=2mass>{{cite journal|bibcode=2003yCat.2246....0C|title=VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)|journal=VizieR On-line Data Catalog: II/246. Originally published in: 2003yCat.2246....0C|volume=2246|author1=Cutri|first1=R. M.|last2=Skrutskie|first2=M. F.|last3=Van Dyk|first3=S.|last4=Beichman|first4=C. A.|last5=Carpenter|first5=J. M.|last6=Chester|first6=T.|last7=Cambresy|first7=L.|last8=Evans|first8=T.|last9=Fowler|first9=J.|last10=Gizis|first10=J.|last11=Howard|first11=E.|last12=Huchra|first12=J.|last13=Jarrett|first13=T.|last14=Kopan|first14=E. L.|last15=Kirkpatrick|first15=J. D.|last16=Light|first16=R. M.|last17=Marsh|first17=K. A.|last18=McCallon|first18=H.|last19=Schneider|first19=S.|last20=Stiening|first20=R.|last21=Sykes|first21=M.|last22=Weinberg|first22=M.|last23=Wheaton|first23=W. A.|last24=Wheelock|first24=S.|last25=Zacarias|first25=N.|year=2003}}</ref>

<ref name=starspots>{{cite journal|bibcode=2009A&ARv..17..251S|title=Starspots|journal=The Astronomy and Astrophysics Review|volume=17|issue=3|pages=251|author1=Strassmeier|first1=Klaus G.|year=2009|doi=10.1007/s00159-009-0020-6}}</ref>


}}
}}

Revision as of 11:06, 31 July 2017

V830 Tauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension 04h 33m 10.033s[1]
Declination +24° 33′ 43.38″[1]
Apparent magnitude (V) 12.08 - 12.37[2]
Characteristics
Spectral type M0-1[3]
Variable type BY Dra[2]
Astrometry
Distance427 ly
(131[4] pc)
Details[4]
Mass1.00 ± 0.05 M☉
Radius2.0 ± 0.2 R☉
Luminosity1.2 L☉
Temperature4,250 ± 50 K
Rotation2.741 days
Rotational velocity (v sin i)30.5 ± 0.5 km/s
Age~2 Myr
Other designations
V830 Tauri, IRAS C04301+2427, 2MASS J04331003+2433433
Database references
SIMBADdata

V830 Tau is a star located 427 light-years (or 131 parsecs) away from the Sun in the Taurus constellation[5]. This star is very young, with an age of only 2 million years[5][6], compared to the Sun's age, which is 4.6 billion years. The star has an exoplanet orbiting around it.

Characteristics

V830 Tau is an M-type star[5]. The star has a mass of roughly 1 solar mass, but has a radius of 2 solar radii[5][6], due to the star's age, which means that it hasn't fully contracted yet to become a main-sequence star. It has a surface temperature of 4250 K[5][6]. For comparison, the Sun's surface temperature is 5778 K.

V830 Tau b

In June 20, 2016, an exoplanet was found via radial velocity[5][6]. It is one of the, if not the youngest exoplanet ever found. The exoplanet has a mass of about 0.77 masses of Jupiter and is orbiting 0.057 AU away from its host star with a period of 4.93 days and an inclination of 55 degrees[5][6].

References

  1. ^ a b Cutri, R. M.; Skrutskie, M. F.; Van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T.; Fowler, J.; Gizis, J.; Howard, E.; Huchra, J.; Jarrett, T.; Kopan, E. L.; Kirkpatrick, J. D.; Light, R. M.; Marsh, K. A.; McCallon, H.; Schneider, S.; Stiening, R.; Sykes, M.; Weinberg, M.; Wheaton, W. A.; Wheelock, S.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR On-line Data Catalog: II/246. Originally published in: 2003yCat.2246....0C. 2246. Bibcode:2003yCat.2246....0C.
  2. ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
  3. ^ Strassmeier, Klaus G. (2009). "Starspots". The Astronomy and Astrophysics Review. 17 (3): 251. Bibcode:2009A&ARv..17..251S. doi:10.1007/s00159-009-0020-6.
  4. ^ a b Donati, J. F.; Moutou, C.; Malo, L.; Baruteau, C.; Yu, L.; Hébrard, E.; Hussain, G.; Alencar, S.; Ménard, F.; Bouvier, J.; Petit, P.; Takami, M.; Doyon, R.; Cameron, A. Collier (2016). "A hot Jupiter orbiting a 2-million-year-old solar-mass T Tauri star". Nature. 534 (7609): 662. arXiv:1606.06236. Bibcode:2016Natur.534..662D. doi:10.1038/nature18305. PMID 27324847.
  5. ^ a b c d e f g "The Extrasolar Planet Encyclopaedia — V830 Tau b". exoplanet.eu. Retrieved 2017-07-30.
  6. ^ a b c d e "V830 Tau b". exoplanetarchive.ipac.caltech.edu. Retrieved 2017-07-30.
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