A planets orbital period distance from the sun

[MeteorWayne]

Nice link, that's a keeper.<br />Or is that a kepler?<br /><br />In any case, thanx. <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[tony873004]

Here's a link to an online calculator that will do the math for you. It only works in IE, not Firefox (sorry FF users, I'll fix that later). It gives the general formula, so you can computer orbital radius (semi-major axis) for any object, not just the Sun.<br /><br />http://orbitsimulator.com/gravity/articles/smaCalculator.html <br /><br />Edit:<br />This version should work in all browsers including Firefox:<br />http://orbitsimulator.com/gravity/articles/formula55.html