HD 85512 b
Wikipedia said:HD 85512 b is an extrasolar planet orbiting the star HD 85512 approximately 36 light-years away in the constellation of Vela.
HD 85512 b is considered to be the best candidate for habitability as of August 25, 2011.
The planet has a minimum Earth mass of 3.6 ± 0.5 and an estimated temperature of 298 K (25 C or 77 F) at the top of its atmosphere.
It orbits the parent star at a distance of about 0.26 AU, with an orbital period of about 54 days.
For the temperature to be below 270 K, for a circular orbit, the planetary albedo should be 0.48 ± 0.05 and for an eccentricity of 0.11, the planetary albedo should be 0.52. If the planet has 50% cloud cover, water may exist in liquid form in the planet provided its atmosphere is similar to our own and the planet would be considered habitable. Also, if the albedo of the planet is increased due to cloud cover in the planet, water could be present in its liquid form in the planet, which would mean that, the planet is on the edge of habitability.
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