This is a combination of 15 images, each of 60 seconds The images were taken with a SBIG ST-8 Dual CCD Camera attached to an Centurion 18" F/2.8 telescope. Each of the images was corrected with a dark frame and a flat field.
There were five images each in Red, Green, and Blue.
This system is at Middlesex School in Concord, MA
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