Editing Beta Scorpii (section)

{{Short description|Multi-star system in the constellation of Scorpius}}
{{Starbox begin
| name = β Scorpii
}}
{{Starbox image
| image=
{{Location mark
|image=Scorpius constellation map.svg|alt=|float=center|width=280
|label=|position=right
|mark=Red circle.svg|mark_width=12|mark_link=Beta Scorpii|x=776|y=232
}}
| caption=Location of β Scorpii (circled)
}}
{{Starbox observe 2s
| epoch = [[J2000.0]]
| constell=[[Scorpius]]
| component1 = HR 5984
| ra1        = {{RA|16|05|26.23198}}<ref name=aaa474_2_653/>
| dec1       = {{DEC|–19|48|19.6300}}<ref name=aaa474_2_653/>
| appmag_v1  = 2.62<ref name="Hoffleit1991"/>
| component2 = HR 5985
| ra2        = {{RA|16|05|26.57128}}<ref name=aaa474_2_653/>
| dec2       = {{DEC|–19|48|06.8556}}<ref name=aaa474_2_653/>
| appmag_v2  = 4.92<ref name="Hoffleit1991"/>
}}
{{Starbox character
| component = HR 5984
| class      = B1V<ref name=mk/> {{nowrap|(B0.5IV-V + B1.5V)<ref name=holmgren/>}}
| b-v        = –0.08<ref name=clpl4_99/>
| u-b        = –0.08<ref name=clpl4_99/>
| variable   =
}}
{{Starbox character|no_heading=y
| component = HR 5985
| class      = B2V<ref name=mk/>
| b-v        = –0.02<ref name=clpl4_99/>
| u-b        = –0.70<ref name=clpl4_99/>
| variable   =
}}
{{Starbox astrometry
| component1 = HR 5984
| radial_v   = –1.0<ref name=rgcrv/>
| prop_mo_ra  = –5.20<ref name=aaa474_2_653/>
| prop_mo_dec = –24.04<ref name=aaa474_2_653/>
| parallax   = 8.07
| p_error    = 0.78
| parallax_footnote = <ref name=aaa474_2_653/>
| absmag_v   = –3.92 / –2.60<ref name=catanzaro/>
| component2 = HR 5985
| radial_v2  = –3.6<ref name=rgcrv/>
| prop_mo_ra2 = –5.07<ref name=aaa474_2_653/>
| prop_mo_dec2 = –25.87<ref name=aaa474_2_653/>
| parallax2  = 8.19
| p_error2   = 1.17
| parallax_footnote2 = <ref name=aaa474_2_653/>
| absmag_v2  = –1.83 (Ea: +0.24)<ref name=catanzaro/>
}}
{{Starbox detail
| source = <ref name=catanzaro/>
| component1 = β&nbsp;Sco Aa
| mass       = 15.0
| radius     = 6.3
| luminosity  = 31,600
| temperature = 28,000
| age        =
| metal_fe   =
| rotational_velocity =
| component2   = β&nbsp;Sco Ab
| mass2        = 10.4
| radius2      = 4.0
| luminosity2  = 7,900
| temperature2 = 26,400
}}
{{Starbox detail|no_heading=y
| component1 = β&nbsp;Sco C
| mass       = 8.2
| radius     = 2.9
| luminosity  = 3,200
| temperature = 24,000
| gravity = 3.8
| rotational_velocity = 55
| component2 = β&nbsp;Sco Ea
| mass2       = 3.5
| radius2     = 2.4
| luminosity2  = 126
| temperature2 = 13,000
| gravity2 = 4.2
| rotational_velocity2 = 5
| age_myr2 = 6.3
}}
{{Starbox catalog |
| names = Acrab, Elacrab, Graffias, 8&nbsp;Scorpii, [[Star catalogue#ADS|ADS]]&nbsp;9913, [[Washington Double Star Catalog|WDS]]&nbsp;J16054-1948
| component1 = β<sup>1</sup>&nbsp;Sco
| names1= [[Star catalogue#BD/CD/CPD|BD]]–19&nbsp;4307, [[Henry Draper Catalogue|HD]]&nbsp;144217, [[Hipparcos catalogue|HIP]]&nbsp;78820, [[Star catalogue#BS, BSC, HR|HR]]&nbsp;5984
| component2 = β<sup>2</sup>&nbsp;Sco
| names2 = BD–19&nbsp;4308, HD&nbsp;144218, HIP&nbsp;78821, HR&nbsp;5985
}}
{{Starbox reference
| Simbad = beta+Sco | sn = β Scorpii
| Simbad2 = HR+5984 | sn2 = β<sup>1</sup> Scorpii
| Simbad3 = HR+5985 | sn3 = β<sup>2</sup> Scorpii
}}
{{ Starbox end }}

'''Beta Scorpii''' ('''β Scorpii''', abbreviated '''Beta Sco''', '''β Sco''') is a [[Star system|multiple star system]] in the southern [[zodiac]] [[constellation]] of [[Scorpius]]. It bore the traditional proper name of '''Acrab''' {{IPAc-en|'|æ|k|r|æ|b}},<ref name=Rumrill>{{cite journal
|title=Star Name Pronunciation
|last=Rumrill |first=H. B.
|journal=Publications of the Astronomical Society of the Pacific
|volume=48
|number=283
|date=June 1936
|page=139 |location = San Francisco, California
|doi=10.1086/124681
|bibcode=1936PASP...48..139R |s2cid=120743052 |doi-access=free
}}</ref> though the [[International Astronomical Union]] now regards that name as applying only to the β Scorpii Aa component.