neg ie ▁Atlas ▁of ▁Gal ax ies ▁can ▁be ▁seen ▁three ▁large ▁H II ▁regions ▁and ▁some ▁f ain ter ▁ones . ▁These ▁regions ▁feature ▁inten se ▁star ▁formation . ▁SN ▁ 2 0 0 5 P ▁was ▁located ▁at ▁the ▁edge ▁of ▁one ▁of ▁these ▁regions . ▁ ▁NGC ▁ 5 4 6 8 ▁forms ▁a ▁non - inter act ing ▁pair ▁with ▁NGC ▁ 5 4 7 2 , ▁which ▁lies ▁at ▁a ▁project ed ▁distance ▁of ▁ 5 . 1 ▁arc min utes . ▁NGC ▁ 5 4 6 8 ▁belongs ▁to ▁the ▁NGC ▁ 5 4 9 3 ▁galax y ▁group . ▁Other ▁members ▁of ▁the ▁group ▁are ▁the ▁interact ing ▁pair ▁Ar p ▁ 2 7 1 ▁( N GC ▁ 5 4 2 6 ▁and ▁NGC ▁ 5 4 2 7 ), ▁NGC ▁ 5 4 7 6 , ▁and ▁NGC ▁ 5 4 9 3 . ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁Category : Inter mediate ▁spir al ▁galaxies ▁Category : V ir go ▁( const ell ation ) ▁ 5 4 6 8 ▁Category : UG CA ▁objects ▁ 5 0 3 2 3 ▁Category : A stronom ical ▁objects ▁discovered ▁in ▁ 1 7 8 5 ▁Category : Dis cover ies ▁by ▁William ▁H ersch el <0x0A> </s> ▁Cast let own ▁ ▁( , ▁pron ounced ▁) ▁is ▁a ▁town ▁in ▁the ▁Is le ▁of ▁Man , ▁ge ograph ically ▁within ▁the ▁historical ▁parish ▁of ▁Male w ▁but ▁admin ister ed ▁separately . ▁L