; per_off.sfa - Thomas G. Ferguson, Abrams Planetarium, Feb. 2002
; per_off.sfa - John French, Abrams Planetarium, Mar. 2002
; per_off.sfa - Flamsteed drawings - Chris Anderson, Falkner Planetarium,  2001
; This file erases the artwork for PER.

0:00 buttons 7,9 play ./per_on
     buttons 7,9 label 'PER   picO'
     declare global PER
     adjust PER brightness 0 /until +2
0:02 erase galactic PER
     end