▁star ▁ ▁U B V ▁phot ometric ▁system ▁ ▁Notes ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁Category : Ob serv ational ▁astronom y ▁Category : Un its ▁of ▁measurement ▁in ▁astronom y ▁Category : Log arith mic ▁scales ▁of ▁measurement ▁ ▁la : M agn it udo ▁( astr onom ia ) <0x0A> </s> ▁An ab apt ist ▁hun ters ▁() ▁were ▁armed ▁en vo ys ▁used ▁by ▁some ▁cant ons ▁of ▁the ▁Old ▁Swiss ▁Confeder acy ▁in ▁order ▁to ▁drive ▁out ▁or ▁suppress ▁the ▁local ▁An ab apt ist ▁population ▁( Sw iss ▁Bre th ren ). ▁▁ ▁In ▁Lower ▁Austria , ▁Diet rich ▁von ▁Hart itsch ▁was ▁h ired ▁as ▁a ▁professional ▁an ab apt ist ▁h unter ▁by ▁Emperor ▁Ferdinand . ▁In ▁ 1 5 3 9 ▁he ▁captured ▁ 1 3 6 ▁an ab apt ists , ▁many ▁of ▁whom ▁were ▁sold ▁as ▁gal ley ▁slaves ▁to ▁Admir al ▁Andrea ▁D oria . ▁ ▁References ▁ ▁Category : An ab apt ism <0x0A> </s> ▁The ▁D ' Y ves ▁Y vas ion ▁ 2 0 0 0 ▁() ▁is ▁a ▁family ▁of ▁French ▁param ot ors ▁that ▁was ▁designed ▁by ▁Y ves ▁H él ary ▁and ▁produced ▁by ▁D ' Y ves ▁Air ▁Pub ▁of ▁La ▁Chap elle - en - V ex in ▁for ▁power ed ▁par ag l iding . ▁Now ▁out ▁of ▁production , ▁when ▁it ▁was ▁available ▁the ▁aircraft ▁was ▁supplied ▁complete ▁and ▁ready - to - fly . ▁ ▁Design ▁and ▁development ▁The ▁Y