Object: The Dumbell Nebula - M27
Date/Time: 9/24/06, 21:00 - 00:00am MDT
Location: ASLC DSO site near Upham, NM.
Camera: Meade DSI Pro II using standard Meade filter set in ATIK filter wheel
Exposure: LRGB 60:30:30:30 minutes
Telescope: Meade SN6 reflector (f/5) piggyback on a Meade 10" LX200
Guiding: Webcam (SC1) and GuideDog
Processing: Luminance frame calibration, registration, and stacking using ImagesPlus. RGB frames processed in ASIP. LRGB combination and final processing in PhotoShop.
Comments: This was my first full color capture using the DSI Pro II and I expected to see more of a blue/green (teal) color in place of the blue background glow. After fooling with the color balance for a few days, I posed a question to the Meade_DSI Yahoogroup and learned that the teal color (caused by OIII emission) falls in the overlap region between the Green and Blue filters in my setup and there just isn't as much transmission at that wavelength as at other parts of the visible spectrum. Given that, I'm pretty happy with this result.© Dave Dockery 2006