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However, that doesn’t make the planet terribly hot: the host star is itself may be a brown dwarf, in which case the planet may be as cold as Pluto!
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Even if it's a ultralow mass red dwarf, it's gonna be very cold. A star of 10
-3 solar luminosities would be about as bright from 0.7 AU as the Sun is from 22 AU, or a bit beyond Uranus's orbit.