M27, Dumbbell Nebula, taken on September 11, 2001 from Cherry Springs State Park, PA.
For details on air-cooling the C2000Z or C2020Z CLICK HERE
Three 32 second exposures stacked: CLICK ON THUMBNAIL FOR LARGER IMAGE
Seven 32 second exposures stacked: CLICK ON THUMBNAIL FOR LARGER IMAGE
Ambient temperature was 58 degrees fahrenheit. I expect improvements with air-cooling system with colder ambient temperatures.