On Oct 11, 2011, at 3:05 AM, Alaconius <[email protected]> wrote: > Now for the sad part. Initially, I thought I knew two sides of the triangle > and didn't need to know the included angle between the two sides > of the triangle formed by a line between the sun and Earth at start, and > Earth after say, 1 minute in the future. Problem is, I don't know > where the earth will be unless I solve for all triangles until area equals > 133,636,049,543.8962 square kilometers. So, it does have to be a > re-iterative process for each of the potential triangles until such a time as > I find one triangle whose area = the targeted area I want on a per time > unit basis (be the time unit in hours, minutes or seconds).
I'm not sure I understand; in fact I'm sure I don't. If you know where on the ellipse your planet is at at t=0, and you know the semi-major axis and eccentricity of the orbit, it seems like figuring what angle the plant moves through each Delta t thereafter should be a fairly simple equation. -- Captain Joy [email protected] _______________________________________________ GurpsNet-L mailing list <[email protected]> http://mail.sjgames.com/mailman/listinfo/gurpsnet-l
