From: Damien Broderick (damienb@unimelb.edu.au)
Date: Wed Jul 09 2003 - 09:53:28 MDT
At 07:55 AM 7/9/03 -0700, Robert wrote:
>90 light years from Earth, the Sol-like star HD70642
>has a 2x Jupiter mass planet orbiting in a roughly
>circular orbit at 3.3 AU from the star with no large
>planets detected in orbits closer to the sun.
That's the one I mentioned the other day. Wouldn't this mung the Mars
equivalent orbit into asteroids, and maybe bugger up the life zone if
there's a potentially habitable planet at circa 1 AU? I can see two
countervailing side effects: too much hard rain (that crud at 1.5 AU), and
not enough (if it's mopping the rocks up--but then Mars is plentifully
cratered).
Damien Broderick
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