To: LibWhacker
A free-floating planet far from a star would have a temperature of 25K, if that. The blackbody temperature would be lower, I’m assuming some warmth from radioactive dacay, assuming the same amount of U and K as here.
I read a paper that discussed tracking long-period or one-time comets back to their origins, and they postulated the passage of a planetary mass that kicked their orbits inward.
3 posted on
05/10/2012 10:14:36 AM PDT by
DBrow
To: DBrow
I know that astronomers have discovered some “clumping” in the Ort cloud that may be the result of something large stirring things up.
It 50 years old, I’m not too worried about it.
7 posted on
05/10/2012 10:20:10 AM PDT by
cripplecreek
(What does it profit a man if he gains the whole world but loses his soul?)
To: DBrow
That was my first impression -- any planet not in close proximity to a star is going to be far too cold for any chemical reactions to occur; certainly not the complex reactions that a "life bearing" world would require.
42 posted on
05/10/2012 11:55:16 AM PDT by
Joe Brower
(Sheep have three speeds: "graze", "stampede" and "cower".)
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson