http://www.space.com/31765-ancient-babylonians-tracked-jupiter-with-math.html[br][br]1) I reposted this after making a correction. - See numbers for ' a ' 43.44[br][br]2) I derived this using the equations below.[br][br]3) What I am checking is; Can I make this geometry using this relationship? Turns out, I can within an error of .02 on each equation shown.