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another beginners M83 part 3
Very trite but:
After my last efforts I tried a different approach.
This image is as stack of 31 sixteen minute exposures at ISO 800 fro my Canon 60Da at prime focus of my Mewlon 210. An Orion thin off axis guider and PHD2 were used for guiding,
The data was collected over three nights, two with good seeing,PHD2 screen dump attached, and one with poor seeing PHD rms error .5 - .7 seconds. The difference in star sharpness is very obvious in the individual frames. However the picture generated from the two good nights (20 frames) is not as smooth as the 31 frame image attached.
Criticism would be appreciated.
Chris
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