On Wed, 6 Aug 2003 23:04:17 +0100, "Paul Evans"
wrote:

Just looking out of my window with the moon about to set in front of me. It's a
very dull reddish-orange colour, though the sky appears to be clear. What is
causing this? Ozone as a result of high temperatures in recent days or something
else?

Paul
Whitefield, Gtr Manchester.



Yep, I saw it too just now Paul. Fairly typical of a very low
elevation moon during high pressure in fact - tend to accentuate the
normal reddening effect. Some reddening is inevitable because of
differential refraction through the increased thickness of atmosphere
at low angle, but the reddening is more apparent when the atmosphere
is hazy for whatever reason. After a good blow and a cold front, you
hardly notice it at all.

Paul
Leigh
Lancs