▁the ▁Sun ' s ▁mass ▁and ▁near ▁eight ▁times ▁the ▁radius ▁of ▁the ▁Sun . ▁It ▁has ▁a ▁stell ar ▁classification ▁of ▁B 0 . 5   V , ▁making ▁it ▁a ▁B - type ▁main ▁sequence ▁star ▁that ▁is ▁generating ▁energy ▁at ▁its ▁core ▁through ▁the ▁nuclear ▁fusion ▁of ▁hydro gen . ▁Component ▁A ▁is ▁radi ating ▁over ▁ 2 8 , 0 0 0 ▁times ▁the ▁Sun ' s ▁lum inos ity ▁from ▁its ▁outer ▁en velope ▁at ▁an ▁effective ▁temperature ▁of ▁ 2 6 , 5 0 0   K . ▁This ▁gives ▁the ▁star ▁the ▁blue - white ▁h ue ▁that ▁is ▁typical ▁of ▁B - type ▁stars . ▁ ▁E psilon ▁Per se i ▁A ▁is ▁a ▁B eta ▁C ep he i ▁variable ▁star ▁with ▁a ▁primary ▁p uls ation ▁period ▁of ▁ 0 . 1 6 0 3   days , ▁or ▁ 6 . 2 4 ▁cycles ▁per ▁day . ▁It ▁may ▁have ▁multiple ▁p uls ation ▁frequencies . ▁ ▁References ▁ ▁External ▁links ▁ ▁Al - Th ur ay ya ▁▁▁ ▁Per se i , ▁E psilon ▁Per se i , ▁ 4 5 ▁Category : Per se us ▁( const ell ation ) ▁Category : St ars ▁with ▁proper ▁names ▁Category : Alpha ▁Per se i ▁Cl uster ▁ 0 1 8 5 3 2 ▁ 0 2 4 7 6 0 ▁ 1 2 2 0 ▁Category : D urch m uster ung ▁objects <0x0A> </s> ▁K FF ▁Li ria ▁() ▁is