The Pinwheel galaxy: M101

Another pass at processing the same collection of shots, to pull more contrast out of the inner and outer structures.

Quite a learning curve with PixInsight....

 

total exposure time 7.5 hours

840mm f/7: Askar 120APO

ZWO ASI533MC Cooled Color Camera at -20C

Guided on ZWO AM5

57x300s with UV/IR cut filter

10x600" with an Ha/Oiii filter

Processed with PixInsight, Ps

 

Done