enochliew: The Midnight Planétarium by Van Cleef & Arpels The movement of each planet is true to its genuine length of orbit: it will take Saturn over 29 years to make a complete circuit of the dial, Jupiter will take almost 12 years, Mars 687 days,

enochliew: The Midnight Planétarium by Van Cleef & Arpels The movement of each planet is true to its genuine length of orbit: it will take Saturn over 29 years to make a complete circuit of the dial, Jupiter will take almost 12 years, Mars 687 days,

tags: Exploration,

from: http://blastdriller.tumblr.com/post/88711112200