not exactly earth/moon, definitely more pluto/charon, but actually more something like this:
1 = first twin planet
2 = second twin planet
b = barycenter of the twin planets
(the badly typed hexagon [the wagon wheel i was describing] that the planets rest on is their orbit)...
for ease of explanation, imagine that the barycenter of two planets is the center of a wheel and that the planets revolve around the edges of the tire. the center of the tire (barycenter) is in orbit around sun, as if the wheel is rolling around in its orbit. my question is, is this possible? of...