ation ▁of ▁O phi uch us . ▁The ▁co - mov ing ▁pair ▁are ▁visible ▁to ▁the ▁n aked ▁eye ▁as ▁a ▁dim ▁point ▁of ▁light , ▁with ▁the ▁two ▁components ▁having ▁apparent ▁visual ▁magn itudes ▁of ▁ 5 . 1 4 ▁and ▁ 6 . 5 9 . ▁As ▁of ▁ 2 0 1 5 , ▁they ▁had ▁an ▁angular ▁separation ▁of ▁ ▁along ▁a ▁position ▁angle ▁of ▁ 3 5 4 ° . ▁The ▁distance ▁to ▁both ▁stars ▁is ▁approximately ▁ 2 8 1   light ▁years ▁based ▁on ▁par alla x , ▁and ▁they ▁are ▁dr ifting ▁closer ▁to ▁the ▁Sun ▁with ▁a ▁radial ▁velocity ▁of ▁around ▁− 2 9   km / s . ▁ ▁The ▁br ighter ▁member ▁of ▁the ▁pair , ▁designated ▁component ▁A , ▁is ▁an ▁ag ing ▁giant ▁star ▁with ▁a ▁stell ar ▁classification ▁of ▁G 8 III . ▁With ▁the ▁supply ▁of ▁hydro gen ▁at ▁its ▁core ▁exha usted , ▁it ▁has ▁expanded ▁to ▁ 1 2 ▁times ▁the ▁radius ▁of ▁the ▁Sun . ▁The ▁star ▁is ▁radi ating ▁ 7 5 ▁times ▁the ▁Sun ' s ▁lum inos ity ▁from ▁its ▁en larg ed ▁photos phere ▁at ▁an ▁effective ▁temperature ▁of ▁ 4 , 8 4 9   K . ▁The ▁secondary ▁star , ▁component ▁B , ▁has ▁a ▁class ▁of ▁F 6 IV - V , ▁matching ▁an ▁F - type ▁star ▁with ▁a ▁lum inos ity ▁class ▁that ▁is ▁a ▁bl end ▁of ▁tra its ▁from ▁a ▁main ▁sequence ▁and ▁a