What are the atmospheric conditions on a planet tidally locked to its moon?

Assume that we have a earth like planet,orbiting a sun like star. On which have all the right ingredient:atmosphere,liquid water,molten metal core.....etc for the existence of the life as we known it.

And assume orbiting said planet is a moon , with which the planet is reciprocally tidally locked (the same side of one planet always facing the other,for both of them ).

We can't have the planet rotating too slow or one side would be baked and the other frozen, so its rotation period must be similar to earth(plus couple of days max). And we can't have a moon traveling faster at the distance such as earth's now is, not without it escape the planet's gravity well , so our moon need to be much closer to the planet.

My question is : what would the atmospheric condition on such a planet be like? And especially at the sub-lunar point?

posted about 7 years ago

w.n.‭

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