What is Dubhe?
{{Starbox begin | name=α Ursae Majoris }} {{Starbox image | image = {{Location mark |image=Ursa Major constellation map.svg|alt=|float=center|width=280 |label=|position=right |mark=Red circle.svg|mark_width=12|mark_link=Alpha Ursae majoris|x=555|y=343 }} | caption = Location of α Ursae Majoris (circled) }} {{Starbox observe | epoch = J2000 | ra = {{RA|11|03|43.67152}}<ref name=aaa474_2_653/> | dec = {{DEC|+61|45|03.7249}}<ref name=aaa474_2_653/> | appmag_v = 1.79<ref name=clpl4_99/> | constell = [[Ursa Major]] }} {{Starbox character | class = K0III<ref name=guenther/> + F0V<ref name=msc/> | b-v = +1.07<ref name=clpl4_99/> | u-b = +0.93<ref name=clpl4_99/> | variable = Suspected<ref name=gcvs>{{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S|volume=1|display-authors=etal|last1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}</ref> }} {{Starbox astrometry | radial_v = {{val|−9.4|0.3}}<ref name=Gontcharov2006/> | prop_mo_ra = {{nowrap|–134.11}}<ref name=aaa474_2_653/> | prop_mo_dec = {{nowrap|–34.70}}<ref name=aaa474_2_653/> | parallax = 26.54 | p_error = 0.48 | parallax_footnote = <ref name=aaa474_2_653/> | absmag_v = {{val|−1.10|0.04}}<ref name=aj135_3_892/> }} {{Starbox detail | component1 = α UMa A | source = <ref name=Baines_et_al_2017/> | mass = {{val|3.44|0.11}} | radius = {{val|17.03|0.13}} | luminosity = {{val|165.1|8.3}} | temperature = {{val|5012|65|fmt=commas}} | gravity = 2.20 | metal_fe = {{val|−0.20|0.07}}<ref name=ajss74_1075/> | rotational_velocity = {{val|2.6|1.0}}<ref name=aj135_3_892/> | age_myr = {{val|280|30}} | component2 = α UMa B | mass2 = ~1.6<ref name=guenther/> }} {{Starbox catalog | names = {{odlist | name=Dubhe | name2=Ak | B=α&nbsp;Ursae Majoris,