▁on ▁the ▁Moon ▁was ▁named ▁in ▁his ▁honor . ▁ ▁See ▁also ▁ ▁Pere pel kin ▁( Mart ian ▁cr ater ) ▁ ▁Pere pel kin ▁( l un ar ▁cr ater ) ▁ ▁References ▁ ▁External ▁links ▁History ▁of ▁P ulk ovo ▁Observ atory ▁ ▁Category : 1 9 0 6 ▁birth s ▁Category : 1 9 3 8 ▁death s ▁Category : Russ ian ▁astronom ers <0x0A> </s> ▁Na ik p ik hel ▁( also ▁N ek b ik hel ▁) ▁is ▁a ▁sub ▁cl an ▁of ▁Y ous af za i ▁Pas ht un ▁in ▁Sw at ▁res iding ▁in ▁the ▁surrounding ▁area ▁of ▁Te hs il ▁Kab al , ▁Sw at ▁lying ▁just ▁opposite ▁to ▁M ing ora ▁( M ing aw ara ) ▁on ▁the ▁western ▁bank ▁of ▁River ▁Sw at , ▁Sw at , ▁K hy ber ▁Pak ht unk h wa , ▁Pakistan . ▁ ▁Eth nic ity ▁ ▁Na ik p ik hel ▁belongs ▁to ▁Y ous af za i ▁branch ▁of ▁Pas ht uns ▁and ▁further ▁expanded ▁to ▁the ▁family ▁tree ▁from ▁Mal ak ▁Y ous af ▁( Y ous af za i ) ▁▁ ▁to ▁A ku ▁ ▁( A ku ▁Z ai ). ▁From ▁the ▁first ▁wife ▁of ▁A ku ▁( A ku ▁Z ai ) ▁namely ▁' G ou h ara ', ▁we ▁have ▁four ▁sons ▁which ▁form ▁the ▁tree ▁to ▁four ▁sub ▁tribes ▁as ▁ 1 . ▁Ba iz ai , ▁ 2 . ▁Kh w aja ▁Z ai ,