- References
{{Starbox begin
| name=BP Boötis
}}{{Starbox observe
| epoch = J2000
| ra = {{RA|15|42|50.760818}}[1]
| dec = {{DEC|+52|21|39.24441}}[1]
| appmag_v = 5.48[3]
| constell = Boötes
}}{{Starbox character
| class = {{nowrap|A0 Vp Si Cr}}[4]
| r-i =
| v-r =
| b-v = {{Val|−0.042|0.004}}[3]
| u-b = -0.1
| variable = α2 CVn[6]
}}{{Starbox astrometry
| radial_v = {{Val|-16.1|2.8}}[3]
| prop_mo_ra = −66.214[1]
| prop_mo_dec = +29.308[1]
| parallax = 10.92
| p_error = 0.18
| parallax_footnote = [1]
| absmag_v = +0.48[11]
}}{{Starbox detail
| source = [11]
| mass = {{Val|2.58|0.07}}
| radius = {{Val|2.7|0.2}}
| luminosity = 65
| temperature = 9,954
| metal_fe =
| gravity = {{Val|3.99|0.07}}
| rotation = 1.29557 days
| age_myr ={{Starbox catalog
| names={{odlist | V=BP Boo | BD=+52° 1898 | HD=140728 | HIP=76957 | HR=5857 | SAO=29628 }}
}}{{Starbox reference
| Simbad=HD+140728
}}{{Starbox end}}BP Boötis is an Alpha² Canum Venaticorum variable star in the constellation Boötes. It varies by 0.02 magnitude over 1.3 days.[14]References1. ^1 2 3 4 5 {{cite DR2}}
2. ^1 2 3 {{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }}
3. ^1 {{citation | title=General catalogue of variable stars: Version GCVS 5.1 | last1=Samus' | first1=N. N. | last2=Kazarovets | first2=E. V. | last3=Durlevich | first3=O. V. | last4=Kireeva | first4=N. N. | last5=Pastukhova | first5=E. N. | journal=Astronomy Reports | volume=61 | pages=80 | year=2017 | postscript=. | doi=10.1134/S1063772917010085 | bibcode=2017ARep...61...80S }}
4. ^1 2 {{citation | last1=North | first1=P. | postscript=. | title=Do SI stars undergo any rotational braking? | journal=Astronomy and Astrophysics | volume=334 | pages=181–187 | date=June 1998 | bibcode=1998A&A...334..181N | arxiv=astro-ph/9802286 }}
5. ^1 {{citation | title=BP Boötis | date=January 4, 2010 | last1=Watson | first1=Christopher | postscript=. | work=AAVSO Website | publisher=American Association of Variable Star Observers | url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=4396 | accessdate=3 August 2014 }}
6. ^1 {{citation | title=The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars | journal=Astrophysical Journal Supplement Series | last1=Abt | first1=Helmut A. | last2=Morrell | first2=Nidia I. | volume=99 | pages=135 | year=1995 | doi=10.1086/192182 | bibcode=1995ApJS...99..135A }}
}}{{Stars of Boötes}}{{DEFAULTSORT:BP Bootis}}{{var-star-stub}} 9 : Boötes|A-type main-sequence stars|Alpha2 Canum Venaticorum variables|Ap star|Durchmusterung objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects|Objects with variable star designations |