- III ▁C , ▁which ▁lies ▁ ▁away . ▁Its ▁colour ▁is ▁obvious ▁when ▁seen ▁through ▁bin oc ular s . ▁It ▁is ▁a ▁multiple ▁system , ▁consisting ▁of ▁the ▁ ▁spect ro scop ic ▁binary ▁G amma ▁A ▁and ▁three ▁optical ▁compan ions , ▁G amma ▁B , ▁magnitude ▁ 1 3 ; ▁G amma ▁C , ▁magnitude ▁ 1 2 ; ▁and ▁G amma ▁D , ▁magnitude ▁ 1 0 . ▁The ▁two ▁components ▁of ▁G amma ▁A ▁orbit ▁each ▁other ▁every ▁ 3 8 9 . 2 ▁days , ▁with ▁an ▁ecc ent ric ▁orbit ▁that ▁takes ▁their ▁separation ▁between ▁ 2 . 3 ▁and ▁ 1 . 4 ▁astronom ical ▁units ▁( AU ). ▁E psilon ▁Can is ▁Minor is ▁is ▁a ▁yellow ▁bright ▁giant ▁of ▁spectral ▁class ▁G 6 . 5 II b ▁of ▁magnitude ▁of ▁ 4 . 9 9 . ▁It ▁lies ▁ ▁from ▁Earth , ▁with ▁ 1 3 ▁times ▁the ▁diameter ▁and ▁ 7 5 0 ▁times ▁the ▁lum inos ity ▁of ▁the ▁Sun . ▁E ta ▁Can is ▁Minor is ▁is ▁a ▁giant ▁of ▁spectral ▁class ▁F 0 III ▁of ▁magnitude ▁ 5 . 2 4 , ▁which ▁has ▁a ▁yellow ish ▁h ue ▁when ▁viewed ▁through ▁bin oc ular s ▁as ▁well ▁as ▁a ▁faint ▁companion ▁of ▁magnitude ▁ 1 1 . 1 . ▁Loc ated ▁ 4 ▁arc seconds ▁from ▁the ▁primary , ▁the ▁companion ▁star ▁is ▁actually ▁around ▁ 4 4 0 ▁A U ▁from ▁the ▁main ▁star ▁and ▁takes