▁a ▁lum inos ity ▁of ▁just ▁over ▁, ▁which ▁corresponds ▁to ▁a ▁very ▁large ▁radius ▁of ▁ ▁and ▁is ▁consider ably ▁more ▁l umin ous ▁than ▁expected ▁for ▁any ▁red ▁super gi ant ▁and ▁extreme . ▁ ▁In ▁October ▁ 2 0 1 3 , ▁astronom ers ▁using ▁the ▁European ▁Southern ▁Observ atory ' s ▁Very ▁Lar ge ▁Survey ▁T eles cope ▁( V ST ) ▁discovered ▁that ▁West er l und ▁ 1 - 2 6 ▁is ▁surrounded ▁by ▁a ▁g low ing ▁cloud ▁of ▁ion ized ▁hydro gen . ▁This ▁is ▁the ▁first ▁ion ized ▁ne b ula ▁to ▁have ▁been ▁discovered ▁around ▁a ▁red ▁super gi ant ▁star ▁through ▁its ▁optical ▁emission ▁lines , ▁and ▁follows ▁the ▁discovery ▁of ▁an ▁ion ized ▁ne b ula ▁around ▁N ML ▁C yg ▁in ▁ 1 9 8 2 . ▁The ▁ne b ula ▁extends ▁ 1 . 3 0 ▁parse cs ▁from ▁the ▁star . ▁ ▁References ▁ ▁Notes ▁ ▁Category : A ra ▁( const ell ation ) ▁Category : M - type ▁hyper gi ants ▁Category : A stronom ical ▁objects ▁discovered ▁in ▁ 1 9 6 1 ▁Category : 2 MA SS ▁objects ▁Category : M - type ▁super gi ants <0x0A> </s> ▁H ats uk oi ▁is ▁a ▁song ▁by ▁Japanese - American ▁singer - song writer ▁Ut ada ▁H ik aru . ▁It ▁is ▁her ▁fifth ▁single ▁under ▁the ▁label ▁Ep ic ▁Records ▁Japan , ▁from ▁her ▁up coming ▁sevent h ▁Japanese - language ▁studio ▁album ▁H