>I stand corrected, if the Moon had greater gravity than the sun, the Earth >would orbit the Moon instead of the Sun. >Troy
They all orbit each other. The path of the Moon relative to the sun
is, however, *always* concave to the Sun. In that geometrical sense
the Moon could be considered to be orbiting the Sun.
Les Cowley
Atmospheric halos
http://dspace.dial.pipex.com/lc/halo/halosim.htm
