Hi Bill,

<<Those Hill sphere radii are given in units of planet radius = 1. Not a
great idea,>>

I'm agnostic about whether it's a good idea. It just needs to be made clear
someplace, preferably in the More Info box itself.

<<you ought to be able to get similar data for the Earth
by selecting your "home planet" as, say, Mars or the Moon,
then right-clicking on the Earth and asking for "more info". >>

I did that too.

Arild said:
<<Now, even though Rp may be useful to some, it didn't impress me much until I
had
it recalculated into kilometers, so that I realized that Jupiter's Hill Sphere
(ie. sphere of gravitational influence) is a whopping 0.35 AU>>

and

<<An entry in the Glossary which could explain the Hill Sphere, would have
been useful.>>
<<The data on Earth is remarkably sparse.>>

I agree. Thanks, Arild for calling my attention to Rp (I saw it, but ignored
it).

Regards,

Ray Shapp