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the smallest ever found up to now

Smaller ones have been found around a pulsar, but that one is often forgotten by the optical exo-planet hunters.

Regaring habitability, two further issues beyond temperature:

  • Since this planet orbits beyond a Neptune-sized planet (which could get that close only by spiralling inward from much further out), it must have been exposed to sizeable perturbations, which makes it likely that its orbit is not very circular. Changing radiation input on a 13-day orbit, I wonder what atmospheric features this could drive.

  • A small red dwarf is not only less luminous overall, but its spectra differs, too. At 3250K-> peak luminosity around 900nm, at the wavelengths preferred by our plants it falls off to about a third.

*Lunatic*, n.
One whose delusions are out of fashion.
by DoDo on Wed Apr 25th, 2007 at 06:12:48 AM EST
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