On Tue, 17 Jun 2008 17:08:45 GMT, Paul Hyett
wrote:

I don't think the curvature of the Earth even allow visibility over that
distance.

Atmospheric refraction?

--
Alan White
Mozilla Firefox and Forte Agent.
Twenty-eight miles NW of Glasgow, overlooking Lochs Long and Goil in Argyll, Scotland.
Webcam and weather:- http://windycroft.gt-britain.co.uk/weather