M101 Pinwheel Galaxy Pat Devine Williams Optics Redcat 51 ZWO183mc pro Optolong l-pro filter
M101 Pinwheel Galaxy ( Jonathan Anderson) 4″ f10 achro on HEQ5 Pro Canon 700d (umod) @ISO 1600 120x40sec + darks,flats etc. Processed DSS & GIMP Gradients below the galaxy show how this has been stretched to the limit. Less stretch leaves the spirals disappointing. As Pat said recently – this target could do with more time.
Pinwheel Galaxy or M101 (Ian A Smith) 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.
M101 Pinwheel Galaxy (Nigel Goodman) 010421 SLCC guided LProMax