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Uploaded 20-Jul-10
Taken 20-Jul-10
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Dimensions900 x 609
Original file size213 KB
Image typeJPEG
Color spaceUncalibrated
Date modified20-Jul-10 10:39
M27

M27

More stacking-and-processing practice. This time, M27 the Dumbbell Nebula gave up its photons for my benefit.

Telescope: Meade 14" SCT w/Hyperstar operating at f/2
Camera: QSI colour CCD imager
Exposure" 20x30 second lights, 10x30 second darks, 10 flats.
Processing: Deep Sky Stacker, Irfanview, Photoshop. Contrast stretch in Curves and Levels, colour balance, unsharp masking, crop..