The Swan Nebula (Messier 17)

 

 

Alluna Optics RC16 with AFFR (F6.0) Paramount PMEII

QHY600m + SBIG STi autoguider,

AstroDon 50mm 5nm h-alpha 20x 2 minute exposures.

Calibration with MaxImCCD, registration and stacking Pixinsight

 

 

Copyright Peter J Ward 2021