Dave Land wrote: > > If that's the case, I suppose that lunar orbital dynamics > Long time ago, I used to work on this topic...
> are not > entirely off topic, so you may enjoy reading about "3753 Cruithne", > Earth's "second moon", with its very unusual compound "kidney > bean"/"horseshoe" orbit with a period around the "kidney bean" of > about 380 days, while that orbit follows the "horseshoe" pattern > around the earth every 770 years or so: > It's not a moon, it's a "Trojan". The Trojan resonance is that defined by a 1:1 relation in the period relative to the primary [in this case, the Sun]. Cruithne orbits the Sun, it's a small body, so it's an asteroid. Alberto Monteiro _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
