NGC 7023 Cep 18.0

2011:11:10:00:18:11

This image is a combination of 4 layers. Layer 1 is clear and was binned 1x1 and is the combination of 18 images each with an exposure of 300 seconds. Layer 2 is red and was binned 2x2 and is the combination of 6 images each with an exposure of 300 seconds. Layer 3 is green and was bibnned 2x2 and is th combination of 6 images each with an exposure of 300 seconds. Layer 4 is blue and was binned 2x2 and is the combination of 6 images each with an exposure of 300 seconds Each of the images was corrected with a dark frame and a flat field. The images taken with a SBIG ST-8 Dual CCD Camera attached to an Centurion 18” F/2.8 telescope.




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Last updated: December 1, 2014