{{Short description|Star in the constellation Taurus}} {{about|t Tauri|the variable star|T Tauri}} {{Starbox begin}} {{Starbox observe | epoch = J2000 | constell = Taurus | ra = {{RA|03|32|35.943}}<ref name=dr3/> | dec = {{DEC|+09|22|24.42}}<ref name=dr3/> | appmag_v = 5.757<ref name=tycho2/> }} {{Starbox character | type = main sequence<ref name=dr3/> | class = B9III<ref name=hube1970/> {{nowrap|(kB8HeB9.5V(HgMn))<ref name=garrison1994/>}} | b-v = −0.08<ref name=renson2009/> | u-b = −0.29<ref name=renson2009/> | variable = }} {{Starbox astrometry | radial_v = +11.40<ref name=rv/> | prop_mo_ra = +30.327 | prop_mo_dec = −48.036 | pm_footnote = <ref name=dr3/> | parallax = 8.9915 | p_error = 0.0866 | parallax_footnote = <ref name=dr3/> | absmag_v = }} {{Starbox detail | mass = 2.8<ref name=dr3/> | radius = 2.5<ref name=dr3/> | gravity = 4.13<ref name=dr3/> | metal_fe = +0.64<ref name=dr3/> | temperature = 10,963<ref name=dr3/> | luminosity = 79<ref name=dr3/> | rotational_velocity = 87.60<ref name=ghazaryan2018/> | rotation = | age_myr = 224<ref name=dr3/> }} {{Starbox catalog | names = {{odlist | B=t Tau | F=6&nbsp;Tau | BD=+08°528 | HD=21933 | HIP=16511 | HR=1079 }}<ref name="SIMBAD"/> }} {{Starbox reference | Simbad = 6+Tau }} {{Starbox end}}

'''6 Tauri''', also designated '''t Tauri''', is a chemically peculiar star in the northern constellation of Taurus. It has an apparent visual magnitude of 5.8, so, according to the Bortle scale, it is faintly visible from suburban skies at night. Measurements made with the Gaia spacecraft show an annual parallax shift of {{val|9.0|ul=mas}}, which is equivalent to a distance of around 363&nbsp;light years from the Sun.

A stellar classification of B9III matches that of a B-type giant star, but a more detailed analysis gives a type of kB8HeB9.5V(HgMn), indicating a main sequence mercury-manganese star. Mercury-manganese stars are chemically peculiar stars with a specific over-abundance of mercury and manganese absorption lines in their spectra.<ref name=renson2009/><ref name=ghazaryan2018/>

6 Tauri has a mass 2.8 times that of the Sun and a radius 2.5 times the Sun's. With an effective temperature of {{val|10,963|ul=K|fmt=commas}}, it shines with a bolometric luminosity of {{solar luminosity|79|link=y}}. Evolutionary models indicate that it is still on the main sequence with an age of 224 million years.<ref name=dr3/>

==References== {{Reflist|refs=

<ref name=dr3>{{Cite Gaia DR3|12561615405506176}}</ref>

<ref name=tycho2>{{cite journal|title=The Tycho-2 catalogue of the 2.5 million brightest stars|author1=Høg, E.|display-authors=etal|date=2000|journal=Astronomy and Astrophysics|volume=355|pages=L27–L30|bibcode=2000A&A...355L..27H}}</ref>

<ref name=garrison1994>{{cite journal | bibcode=1994AJ....107.1556G | doi=10.1086/116967| title=The late B-type stars: Refined MK classification, confrontation with stromgren photometry, and the effects of rotation| journal=The Astronomical Journal| volume=107| pages=1556| year=1994| last1=Garrison| first1=R. F.| last2=Gray| first2=R. O.}}</ref>

<ref name=rv>{{cite journal |last1=Gontcharov |first1=G. A. |title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system |journal=Astronomy Letters |date=November 2006 |volume=32 |issue=11 |pages=759–771 |doi=10.1134/S1063773706110065 |issn=1063-7737 |bibcode=2006AstL...32..759G |arxiv=1606.08053|s2cid=119231169 }}</ref>

<ref name=hube1970>{{cite journal | title=The radial velocities of 335 late B-type stars | last1=Hube | first1=Douglas P. | journal=Memoirs of the Royal Astronomical Society | volume=72 | page=233 | date=1970 | bibcode=1970MmRAS..72..233H }}</ref>

<ref name=renson2009>{{cite journal | last1=Renson | first1=P. | last2=Manfroid | first2=J. | title=Catalogue of Ap, HgMn and Am stars | journal=Astronomy and Astrophysics | volume=498 | issue=3 | pages=961–966 |date=May 2009 | doi=10.1051/0004-6361/200810788 | bibcode=2009A&A...498..961R | doi-access=free }}</ref>

<ref name=ghazaryan2018>{{cite journal|doi=10.1093/mnras/sty1912|title=New catalogue of chemically peculiar stars, and statistical analysis|journal=Monthly Notices of the Royal Astronomical Society|volume=480|issue=3|pages=2953–2962|year=2018|last1=Ghazaryan|first1=S.|last2=Alecian|first2=G.|last3=Hakobyan|first3=A. A.|doi-access=free |bibcode=2018MNRAS.480.2953G|arxiv=1807.06902|s2cid=119062018}}</ref>

<ref name="SIMBAD">{{cite simbad | title=6 Tau | access-date=2022-09-20 }}</ref>

}}

{{Stars of Taurus}} {{Sky|03|32|35.943|+|09|22|24.42}}

Category:Taurus (constellation) Tauri, f Tauri, 006 1079 Category:Durchmusterung objects Category:Mercury-manganese stars 021933 016511 Category:B-type giants Category:B-type main-sequence stars Category:Population I stars