Editing Beta Tauri (section)

{{Short description|Star in the constellation Taurus}}
{{redirect-multi|3|Elnath|Alnath|Nath (star)|other topics|El Nath (disambiguation)|and|Nath (disambiguation)}}
{{Starbox begin
 | name=β Tauri
}}
{{Starbox image
 | image=
{{Location mark
|image=Taurus constellation map.svg|alt=|float=center|width=240
|label=|position=right
|mark=Red circle.svg|mark_width=10|mark_link=β Tauri
|x=190|y=196
}}
|caption=Location of β Tauri in Taurus (circled)
}}
{{Starbox observe
 |pronounce = {{IPAc-en|E|l|'|n|æ|θ}}<ref>{{OED|Alnath}}</ref> or {{IPAc-en|'|E|l|n|æ|θ}}<ref name=Kunitzsch/>
 |epoch=J2000
 |ra={{RA|05|26|17.51312}}<ref name=hipparcos/>
 |dec={{DEC|+28|36|26.8262}}<ref name=hipparcos/>
 |appmag_v=1.65<ref name=ducati/>
 |constell=[[Taurus (constellation)|Taurus]]<ref name=Anderson2012/>
}}
{{Starbox character
  |class=B7III<ref name=garrison/>
  |b-v=−0.13<ref name=ducati/>
  |u-b=−0.49<ref name=ducati/>
  |variable=
}}
{{Starbox astrometry
  |radial_v=9.2<ref name=rv/>
  |prop_mo_ra=+22.76
  |prop_mo_dec=−173.58
 | pm_footnote=<ref name=hipparcos/>
  |parallax=24.36
  |p_error=0.34
  |parallax_footnote=<ref name=hipparcos/>
  |absmag_v=−1.42<ref name=Anderson2012/>
}}
{{Starbox detail
 | mass={{Val|5.0|0.1}}<ref name=apj736_2_89/>
 | radius={{val|4.79|0.13}}<ref name=Baines2025/> 
 | luminosity={{val|564|20}}<ref name=Baines2021/>
 | temperature={{Val|13,600|100|fmt=commas}}<ref name=gordon2019/>
 | metal_fe=+0.2<ref name=Baines2021/>
 | rotational_velocity=59<ref name=hgmn/>
 | gravity=3.63<ref name=Baines2021/>
 | age_myr={{Val|100|10}}<ref name=apj736_2_89/>
}}
{{Starbox catalog
 |names={{odlist | name=Elnath | name2=El Nath | name3=Alnath | B=β Tauri, Gamma Aurigae | F=112&nbsp;Tauri | BD=+28°795 | FK5=202 | HD=35497 | HIP=25428 | HR=1791 | SAO=77168 | CCDM=05263+2836 | GC=6681 | WDS=J05263+2836A }}
}}
{{Starbox reference
 | Simbad=HD+35497
}}
{{Starbox end}}

'''Beta Tauri''' is the second-brightest [[star]] in the [[constellation]] of [[Taurus (constellation)|Taurus]]. It has the official name '''Elnath'''; ''Beta Tauri'' is the current [[Bayer designation]], which is [[Latinisation of names|Latinised]] from '''β Tauri''' and abbreviated '''Beta Tau''' or '''β Tau'''. The original designation of Gamma Aurigae is now rarely used. It is a [[chemically peculiar star|chemically peculiar]] B7 [[giant star]], 134 [[light year]]s away from the Sun with an [[apparent magnitude]] of 1.65.