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Doug Christianson: I had my list ready, my warm clothes, gloves, cap, and thermos were all found. My equipment list was in disarray. Do I go for the Messier Marathon (no computer, no camera, lots of frustration) or do I go the imaging route (remember my list, camera, computer, bucket, water pump, hoses, ... it goes on and on). Then the Constellation class was wiped out, the clouds set in and all the options were eliminated for the Marathon weekend.
The clouds broke on Wednesday after 6 inches of rain in Arlington so I had to take my scope into the back yard, camera and all. Inspired by a "Reflector" article on ccd imaging from the city, I just knew that it was going to be a good night. The keys were 1. Use the focal reducer (f/10 becomes f/6.3) and 2. Use larger pixels to gain sensitivity (ccd camera software lets you bin adjacent pixels to make 2x2 or 3x3 so that each photosite gathers more light at lower resolution), and 3. Get a good polar alignment.
Getting the polar alignment for visual purposes is an
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