From: "Duane" <macastronomer@mac.com>

Date: November 28, 2007 11:01:11 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: Raising a heat issue

When imaging, are you guys concerned about your body heat being near the scope when imaging? I usually position myself a ways form the scope and try to be down wind. Now that 

I'm imaging from a small observatory, I have a little less freedom in positioning. 

What about dew heater straps on scopes, will these cause problems? I have a dew buster with 

a temp sensor, which is supposed to keep things just warm enough to keep dew off (if used 

correctly), but I'm not sure. This is pretty hi-res imagery, should i be taking greater 

precautions against local heat turbulence?

Duane