# 32 Tauri

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> Markdown URL: https://mediated.wiki/source/32_Tauri.md
> Source: https://en.wikipedia.org/wiki/32_Tauri
> Source revision: 1337674039
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{{short description|Yellow-white hued subgiant star in the constellation Taurus}}
{{Starbox begin}}
{{Starbox image
 | image=
{{Location mark
|image=Taurus constellation map.svg|alt=|float=center|width=280
|label=|position=right
|mark=Red circle.svg|mark_width=8|mark_link=32 Tau
|x=748|y=370
}}
|caption=Location of 32 Tauri (circled)
}}
{{Starbox observe
 | epoch = J2000.0
 | constell = [Taurus](/source/Taurus_(constellation))
 | ra = {{RA|03|56|52.077}}<ref name=GaiaDR3/>
 | dec = {{DEC|+22|28|40.70}}<ref name=GaiaDR3/>
 | appmag_v = 5.62<ref name=Anderson_Francis_2012/>
}}
{{Starbox character
 | type = [main sequence](/source/main_sequence)<ref name=GaiaDR3/>
 | class = F2IVs<ref name=Gray_et_al_2001/>
 | b-v = {{val|+0.345|0.004}}<ref name=Anderson_Francis_2012/>
 | u-b = +0.00<ref name="MERMILLIOD"/>
 | variable = 
}}
{{Starbox astrometry
 | radial_v = +31.90<ref name=al32_11_759/>
 | prop_mo_ra = +70.674
 | prop_mo_dec = −114.026
 | pm_footnote = <ref name=GaiaDR3/>
 | parallax = 22.5957
 | p_error = 0.0385
 | parallax_footnote = <ref name=GaiaDR3/>
 | absmag_v = 2.42<ref name=Paunzen2014/>
}}
{{Starbox detail
 | mass = 2.04<ref name = TICv7/>
 | radius = 2.75<ref name = TICv7/>
 | luminosity = 15.4<ref name = TICv7/>
 | gravity = 3.87<ref name = TICv7/>
 | temperature = 6.901<ref name = TICv7/>
 | metal_fe = −0.19<ref name=Gáspár2016/>
 | rotation = 
 | rotational_velocity = 19.7<ref name=deMedeiros2014/>
 | age_gyr = 2.1<ref name=aa530_A138/>
}}
{{Starbox catalog
 | names = {{odlist | BD=+22°605 | FK5=2283 | HD=24740 | HIP=18471 | HR=1218 | SAO=76339}}, [Ross](/source/Frank_Elmore_Ross) 33<ref name=SIMBAD/>
}}
{{Starbox reference
 | Simbad = 32+Tau
}}
{{Starbox end}}

'''32 Tauri''' is the [Flamsteed designation](/source/Flamsteed_designation) for a solitary<ref name=mnras389_2_869/> [star](/source/star) in the [zodiac](/source/zodiac) [constellation](/source/constellation) of [Taurus](/source/Taurus_(constellation)). It has a [visual magnitude](/source/apparent_magnitude) of 5.64,<ref name="MERMILLIOD"/> making it visible to the naked eye from suburban skies (according to the [Bortle scale](/source/Bortle_scale)). The position of this star near the [ecliptic plane](/source/ecliptic_plane) means that it is subject to [occultation](/source/occultation)s by the [Moon](/source/Moon).<ref name=aj41_956_80/> [Parallax](/source/Stellar_parallax) measurements put it at a distance of 144&nbsp;[light year](/source/light_year)s from the [Sun](/source/Sun).<ref name=GaiaDR3/> It is drifting further away with a [radial velocity](/source/radial_velocity) of +31.9<ref name=al32_11_759/>&nbsp;km/s, having come to within {{convert|27.27|pc|ly|disp=out|abbr=off}} some 759,000&nbsp;years ago.<ref name=Anderson_Francis_2012/>

The [spectrum](/source/spectrum) of this star matches a [stellar classification](/source/stellar_classification) of F2IVs,<ref name=Gray_et_al_2001/> with the [luminosity class](/source/luminosity_class) of IV indicating that this star has reached the [subgiant](/source/subgiant) stage and is in the process of evolving into a [giant star](/source/giant_star). It has twice the mass of the sun with nearly three times the [Sun's radius](/source/Sun's_radius), but 15 times the Sun's luminosity<ref name = TICv7/> and about half the Sun's age.<ref name=aa530_A138/> The abundance of elements other than hydrogen and helium is lower in this star than in the Sun.<ref name=aa530_A138/> The [effective temperature](/source/effective_temperature) of the star's [outer atmosphere](/source/Stellar_atmosphere) is {{val|6,901|u=K}},<ref name = TICv7/> giving it the white-hued glow of an F-type star.<ref name="csiro"/>

==References==
<references>
<ref name=GaiaDR3>{{Cite Gaia DR3|65319619282119808}}</ref>

<ref name=Gáspár2016>{{citation
 | display-authors=1 | last1=Gáspár | first1=András
 | last2=Rieke | first2=George H. | last3=Ballering | first3=Nicholas
 | title=The Correlation between Metallicity and Debris Disk Mass
 | journal=The Astrophysical Journal
 | volume=826 | issue=2 | pages=171 | year=2016
 | bibcode=2016ApJ...826..171G | postscript=. | arxiv=1604.07403 | doi=10.3847/0004-637x/826/2/171| s2cid=119241004 | doi-access=free }}</ref>

<ref name = TICv7>{{citation|postscript=.|display-authors=1 |last1=Stassun |first1=Keivan G. |last2=Oelkers |first2=Ryan J. |last3=Pepper |first3=Joshua |last4=Paegert |first4=Martin |last5=De Lee |first5=Nathan |last6=Torres |first6=Guillermo |last7=Latham |first7=David W. |last8=Charpinet |first8=Stéphane |last9=Dressing |first9=Courtney D. |last10=Huber |first10=Daniel |last11=Kane |first11=Stephen R. |last12=Lépine |first12=Sébastien |last13=Mann |first13=Andrew |last14=Muirhead |first14=Philip S. |last15=Rojas-Ayala |first15=Bárbara |last16=Silvotti |first16=Roberto |last17=Fleming |first17=Scott W. |last18=Levine |first18=Al |last19=Plavchan |first19=Peter |title=The TESS Input Catalog and Candidate Target List |journal=The Astronomical Journal |date=September 2018 |volume=156 |issue=3 |pages=102 |doi=10.3847/1538-3881/aad050 |arxiv=1706.00495 |bibcode=2018AJ....156..102S |issn=0004-6256|doi-access=free }}</ref>

<ref name=Gray_et_al_2001>{{citation
 | display-authors=1 | last1=Gray | first1=R. O.
 | last2=Napier | first2=M. G. | last3=Winkler | first3=L. I.
 | title=The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars
 | journal=The Astronomical Journal
 | volume=121 | issue=4 | pages=2148–2158 | date=April 2001
 | doi=10.1086/319956 | doi-access=free
 | bibcode=2001AJ....121.2148G | postscript=. }}</ref>

<ref name=Anderson_Francis_2012>{{citation
 | last1=Anderson | first1=E. | last2=Francis | first2=Ch.
 | title=XHIP: An extended hipparcos compilation
 | journal=Astronomy Letters
 | volume=38 | issue=5 | pages=331 | year=2012
 | bibcode=2012AstL...38..331A | arxiv=1108.4971
 | doi=10.1134/S1063773712050015 | s2cid=119257644 | postscript=. }}</ref>

<ref name=al32_11_759>{{citation
 | last1=Gontcharov | first1=G. A.
 | title=Pulkovo Compilation of Radial Velocities for 35,495 Hipparcos stars in a common system
 | journal=Astronomy Letters
 | volume=32 | issue=11 | pages=759–771 | date=November 2006
 | doi = 10.1134/S1063773706110065
 | bibcode=2006AstL...32..759G
 | postscript=.
|arxiv = 1606.08053 | s2cid=119231169
 }}</ref>

<ref name=aa530_A138>{{citation
 | display-authors=1
 | last1=Casagrande | first1=L.
 | last2=Schönrich | first2=R.
 | last3=Asplund | first3=M.
 | last4=Cassisi | first4=S.
 | last5=Ramírez | first5=I.
 | last6=Meléndez | first6=J.
 | last7=Bensby | first7=T.
 | last8=Feltzing | first8=S.
 | title=New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey
 | journal=Astronomy & Astrophysics
 | volume=530 | issue=A138 | pages=21 | date=2011
 | doi=10.1051/0004-6361/201016276
 | bibcode=2011A&A...530A.138C
 | postscript=.
|arxiv = 1103.4651 | s2cid=56118016 }}</ref>

<ref name=mnras389_2_869>{{citation
 | last1=Eggleton | first1=P. P.
 | last2=Tokovinin | first2=A. A.
 | title=A catalogue of multiplicity among bright stellar systems
 | journal=[Monthly Notices of the Royal Astronomical Society](/source/Monthly_Notices_of_the_Royal_Astronomical_Society)
 | volume=389 | issue=2 | pages=869–879 | date=September 2008
 | doi=10.1111/j.1365-2966.2008.13596.x
 | doi-access=free
 | bibcode=2008MNRAS.389..869E
 | arxiv=0806.2878
 | s2cid=14878976
 | postscript=.
}}</ref>

<ref name=aj41_956_80>{{citation
 | last1=Barry | first1=T. D.
 | last2=Blatchford | first2=J. A. 
 | title=Occultations of stars by the moon 
 | journal=Astronomical Journal
 | volume=41 | issue=956 | page=80 | date=May 1931
 | doi=10.1086/105033 
 | bibcode=1931AJ.....41...80B 
 | postscript=.
| doi-access=free}}</ref>

<ref name="csiro">{{citation
 |title=The Colour of Stars 
 |date=December 21, 2004 
 |work=Australia Telescope, Outreach and Education 
 |publisher=[Commonwealth Scientific and Industrial Research Organisation](/source/Commonwealth_Scientific_and_Industrial_Research_Organisation) 
 |url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html 
 |access-date=2012-01-16 
 |postscript=. 
 |url-status=dead
 |archive-url=https://web.archive.org/web/20120318151427/http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html
 |archive-date=March 18, 2012
}}</ref>

<ref name=Paunzen2014>{{citation
 | title=Investigating the possible connection between λ Bootis stars and intermediate Population II type stars
 | display-authors=1 | last1=Paunzen | first1=E.
 | last2=Iliev | first2=I. Kh. | last3=Fossati | first3=L.
 | last4=Heiter | first4=U. | last5=Weiss | first5=W. W.
 | journal=Astronomy & Astrophysics
 | volume=567 | id=A67 | pages=8 | date=July 2014
 | doi=10.1051/0004-6361/201423817 | bibcode=2014A&A...567A..67P
 | arxiv=1406.3936 | s2cid=56332289 | postscript=. }}</ref>

<ref name="MERMILLIOD">{{citation
 | last1=Mermilliod | first1=J.-C.
 | title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)
 | journal=Catalogue of Eggen's UBV Data. SIMBAD
 | date=1986 | bibcode=1986EgUBV........0M
 | postscript=.
}}</ref>

<ref name=deMedeiros2014>{{citation
 | last1=De Medeiros | first1=J. R. | last2=Alves |first2=S. | last3=Udry | first3=S | last4=Andersen | first4=J | last5=Nordström | first5=B. | last6=Mayor | first6=M.
 | title=A catalog of rotational and radial velocities for evolved stars. V. Southern stars
 | journal=Astronomy & Astrophysics | volume=561 | date=January 2014 | pages=27
 | bibcode= 2014A&A...561A.126D | arxiv=1312.3474 | doi= 10.1051/0004-6361/201220762| s2cid=54046583 }}</ref>

<ref name=SIMBAD>{{cite simbad
 | title=32 Tau
 | access-date=2015-11-05
 }}</ref>
</references>

{{Stars of Taurus|state=collapsed}}

Category:F-type subgiants
Category:Taurus (constellation)
Tauri, 032
1218
BD+22 0605
024740
018471

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Adapted from the Wikipedia article [32 Tauri](https://en.wikipedia.org/wiki/32_Tauri) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/32_Tauri?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.