The rare part is the relative size of the moon vs our planet. We're almost a double planet. Look at the moons of Mars...oh, right, they're just rocks. Venus and Mercury have no moons! Only gas giants seem to get moons in a significant number and they won't have tides. The moons themselves, if they had seas, would have tides, but they're not planets!



The Jedi Master

I figured there'd be a thread for this here...
Check out the status page, http://kepler.nasa.gov/Mission/discoveries/?CFID=5494796&CFTOKEN=91519032
where you can browse the current catalog for appealing real estate
http://kepler.nasa.gov/files/mws/FebDataRelease_revised_020211.pdf

Also see the power point slide files, one of them (forget which) has a very nice set of
scatter charts showing the distributions of the candidates against various criteria
(size, temp, etc)

And that's just what they've got in 4 months, the catalog will be updated as the project continues.
After all, as they are watching for occultations, objects with a 1 year plus orbital period won't
be likely to have been detected til the better part of a year has passed.

ALL THESE WORLDS ARE YOURS EXCEPT EUROPA. ATTEMPT NO LANDINGS THERE.