On Tue, 25 Jan 2005 07:54:08 -0800, wrote:
I was actually thinking of a black sunshield for a Mercury orbiting
object, but the other issues are noted.

Two follow-up questions:

*If the sunshield is uninsulated, would the IR radiation from the
sunshield warm the objects behind the sunshield as much as if they were
directly exposed to the sun?

How about a sun shield with a radiator extending backward (away from
the Sun and orthogonal to the shield)? The radiator faces "cold"
space, so it should work ok. If passive cooling is not enough, active
cooling, like heat pipes, might work.

-paul-
--
Paul E. Black )