▁times ▁as ▁l umin ous ▁and ▁three ▁times ▁as ▁massive ▁as ▁the ▁Sun . ▁ ▁Although ▁its ▁variations ▁are ▁slight , ▁G ome isa ▁is ▁class ified ▁as ▁a ▁shell ▁star ▁( Gamma ▁Cass io pe iae ▁variable ), ▁with ▁a ▁maximum ▁magnitude ▁of ▁ 2 . 8 4 ▁and ▁a ▁minimum ▁magnitude ▁of ▁ 2 . 9 2 . ▁It ▁is ▁surrounded ▁by ▁a ▁disk ▁of ▁gas ▁which ▁it ▁he ats ▁and ▁causes ▁to ▁emit ▁radiation . ▁ ▁Johann ▁Bayer ▁used ▁the ▁Greek ▁letters ▁Al pha ▁to ▁E ta ▁to ▁label ▁the ▁most ▁prominent ▁eight ▁stars ▁in ▁the ▁const ell ation , ▁design ating ▁two ▁stars ▁as ▁D elta ▁( named ▁D elta 1 ▁and ▁D elta 2 ). ▁John ▁Fl am ste ed ▁number ed ▁four teen ▁stars , ▁disc ern ing ▁a ▁third ▁star ▁he ▁named ▁D elta 3 ; ▁his ▁star ▁ 1 2 ▁Can is ▁Minor is ▁was ▁not ▁found ▁subsequently . ▁In ▁Bayer ' s ▁ 1 6 0 3 ▁work ▁U ran omet ria , ▁Pro cy on ▁is ▁located ▁on ▁the ▁dog ' s ▁bel ly , ▁and ▁G ome isa ▁on ▁its ▁neck . ▁G amma , ▁E psilon ▁and ▁E ta ▁Can is ▁Minor is ▁lie ▁nearby , ▁mark ing ▁the ▁dog ' s ▁neck , ▁crown ▁and ▁ch est ▁respectively . ▁Although ▁it ▁has ▁an ▁apparent ▁magnitude ▁of ▁ 4 . 3 4 , ▁G amma ▁Can is ▁Minor is ▁is ▁an ▁orange ▁K - type ▁giant ▁of ▁spectral ▁class ▁K 3