M13 - short test
A short test of M13 with the ASI1600MM-Cool. The image contains 7 minutes worth of data with 1 second exposures (so a little over 400 frames x 1 second stacked in AS!2). I hope to do this target again sometime, but I have been clouded out forever now... The result is a bit noisy, it needs more integrations, but the sharpness is there I think.
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p.s. I used a cheap skywatcher coma corrector. Quite tricky to set up, but it does seem to work better. Perhaps a more expensive one can be justified at one point or another...
40 cm Dobson made by Rik ter Horst