I have been wondering ever since I heard about Kepler doing amazing things recently whether we have any ideas if the extrasolar planets we're observing have moons?
It seems to me that a significantly sized moon would affect the wobble of the star because it would be exerting more of a gravitational affect when it was closest to the moon...am I right about this?
Also, the other method of detection would also be effected. If you're measuring the dimming of star due to an orbiting body, then this dimming would be effected by the orbit of a moon because the dimming would fluctuate routinely as the moon moves out from either in front of or behind the planet.
It could be that the methods haven't been honed enough yet to do this, but I'd love to hear from someone who knows to tell me if the moon issue is being factored in at all???
It ocurred to me that if it isn't then it might mess up the calculations a little. If we're looking for Earth-like, alien habitats, then, as we know, moons are useful buggers to have around, particularly big ones...