alla x ▁shift ▁of ▁ 3 0 . 8 2   mas , ▁is ▁ 1 0 5 . 8   light ▁years . ▁ ▁The ▁visual ▁magnitude ▁is ▁reduced ▁by ▁an ▁inter stell ar ▁absor ption ▁factor ▁of ▁ 0 . 0 6 ▁due ▁to ▁interven ing ▁dust . ▁ ▁Depending ▁on ▁the ▁source , ▁this ▁star ▁has ▁been ▁given ▁a ▁stell ar ▁classification ▁of ▁K 1   III ▁or ▁K 1   IV , ▁suggesting ▁that ▁it ▁is ▁a ▁K - type ▁star ▁currently ▁in ▁the ▁sub gi ant ▁or ▁giant ▁stage ▁of ▁its ▁evolution . ▁It ▁has ▁ 1 . 5 7 ▁times ▁the ▁Sun ' s ▁mass ▁and ▁has ▁expanded ▁to ▁more ▁than ▁five ▁times ▁the ▁radius ▁of ▁the ▁Sun . ▁The ▁star ▁appears ▁to ▁be ▁spin ning ▁slowly ▁with ▁a ▁project ed ▁rot ational ▁velocity ▁of ▁ 1 . 2   km / s , ▁and ▁is ▁around ▁ 2 . 2 ▁billion ▁years ▁old . ▁It ▁is ▁estimated ▁to ▁radi ate ▁ 1 5 . 5 ▁times ▁the ▁solar ▁lum inos ity ▁from ▁its ▁outer ▁atmosphere ▁at ▁an ▁effective ▁temperature ▁of ▁ 4 , 9 3 6   K . ▁ ▁O mic ron ▁Col um ba e ▁is ▁a ▁high ▁proper ▁motion ▁star ▁that ▁may ▁share ▁a ▁common ▁proper ▁motion ▁with ▁the ▁object ▁W I SE   J 0 5 1 7 2 3 . 8 7 − 3 4 5 1 2 1 . 8 . ▁The ▁two ▁have ▁an ▁angular ▁separation ▁of ▁ 1