Pinwheel Galaxy or M101

Pinwheel Galaxy or M101

 

Skywatcher 200p, NEQ6 mount, Altair Triband filter, Baader MPCC M3 coma corrector, ASI294MC Pro at -20C.

 

NINA Observatory Software.

 

42 x 300 second (3 hour 30 minutes) at Gain 350, Offset 30, dithering every 3rd frame, 40 dark frames, 40 flat fields, 40 dark flat frames.

 

Processed in APP (using Ha-OIII formula), Topaz de-noise and Photoshop. .

 

Wind was quite gusty

 

3rd/4th April 2021.

Done