
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)
100222 102ED 294C 0.75 red. LEnhance 150s 391g 20ofs -15C x 23 (1 of 1)-DeNoiseAI-standard
Done in a bit of a hurry after an evening battling unsuccessfully with NINA. Only 23 x 150s at 391g and 20ofs. Packed in early (1pm) because I was very tired.

Pinwheel Galaxy or M101 (Ian A Smith)
Skywatcher 190MN, NEQ6 mount, Altair Tri-|Band filter, ASI294MC Pro at -20C. 45 x 5 minute exposures (3 hour 45 minutes ) at Gain 120, Offset 30, 50 dark frames, 50 flat fields and 50 dark flat frames.
Processed in Pixinsight Topaz denoise and Photoshop.
Collected between 0:38 to 2:07 on the 21st and between 22:35 and 1:08 on the 22nd/23rd of March, 2022.
Passing thin clouds.

M101 (Pat Devine)
March 19th 2022 from 22:45
Edinburgh Bortle 7/8 zone
Celestron RASA 8″
ZWO 183mc pro
ZWO EAF
Optolong l-Pro filter
ZWO air pro
Sky-Watcher HEQ5 Pro
150*30s lights with flats, darks and bias
Gain 122 at -10C
Processed in APP , Pixinsight and Photoshop