Sixty eight I think it is. So (while we're waiting to see what grade I got on my homework) we could say that makes the Earth/moon arrangement either a one-in-9 shot, or a one-in-68 shot, depending on how you want to look at it.
9 planets but many, many moons
How you want to look at things is vitally important, and if nothing else, I think this discussion does serve to emphasize the diametrically opposed approaches used respectively by scientists and creationists. It is because of this that we will never resolve this here (and, I will argue, that's maybe a good thing).
Scientists tend to feel uncomfortable when they have to posit highly improbable events in order to explain things. Yes, it is possible for a body to have approached the Earth at juuust the right speed, and at juuust the right angle for it to have been captured into orbit -- but since the odds against it are enormously greater than those that would produce a collision, a theory relying on collision rather than capture is favored, even though that explanation hardly escapes the difficulty altogether (what's worse is that two such events are really required once Earth's rotation is taken into account).
But scientists tend to get a little excited when they hit on something that looks like a good explanation for a mystery, and it might not be a big surprise if they tried to skip quickly past the part about how unlikely something is. Lucky for us all, they have creationists to keep them in line. The creationist embraces the improbable; for him, it is the holy grail: the proof for special creation.
This probably isn't what Phaedrus had in mind when he said this:
but I do think we all stand to gain by working on how to better communicate across the vast gulf that divides us.
intelligent design and creationism are all a part of the theory of evolution
For me, the creationist's bias is glaring, but his bias can't make me look bad; the only thing that can do that is my own. In his presence, I am forced to confront it. Yes, okay, the Earth/moon arrangement does seem to have some rather improbable aspects (my being here to make that observation defies possibly even longer odds, and I haven't always made choices that improved them).