Re[2]: ATM body heat in the light path.

[Dwight Elvey <elvey@hal.com>]

"Donn Starkey" <starkey@fwi.com> wrote:
> 
> The solar abservatory at Big Bear, CA is in the middle of a lake so as to
> reduce the heat rising from the area around the scope.  It would seem that
> water would be a great medium to surround an observatory with.
> 
> Donn Starkey

Hi Donn
 Notice that it is a solar observatory not a night time.
During the day, heating of the ground makes so much
heat waves that the slower to heat water is better.
During the night, water that holds the days heat
would be bad unless the night temperatures matched
the waters temperature.
Dwight