; orbit_on.sfa - John French, Abrams Planetarium, May 2002
; ; This file draws the solar system orbits.

0:00 buttons 5,15 play ./orbit_off
     buttons 5,15 label 'orbit  Off'
 	declare global orrery
 	declare global dot
	adj mercury mem add orrery
	adj venus mem add orrery
	adj earth mem add orrery
	adj mars mem add orrery
	adj jupiter mem add orrery
	adj saturn mem add orrery
	adj uranus mem add orrery
	adj neptune mem add orrery
	adj pluto mem add orrery
	end