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I guess that in the scheme of things, it's the same order of magnitude - mass wise. And I think their key point is that the temperature is "ok".
Gravity wise.... it's not necessarily 45 times as much as Earths. Might be, might not be. Dunno. Apart from density, it's going to depend somewhat on the diameter. Unless we have that, I strongly doubt that surface gravity can be calculated.
But I may be wrong.
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