Testing on horse-head nebula.
Brotle 3-4
15-20 deg abov horizon, not good seeing.
201 X 45s subs, stacked in DSS processed in Siril (edit number of subs)
Skywatcher explorer 200pds ( some mods)
Sony A7R (1)
Baader mpcc III coma corrector
Ioptron CEM40 (no guiding)
MELE Overclock 3C running NINA
(no filters)
Are my diffraction spikes extreme?