Comparison of Thor's Helmet Nebula Imaged with AP155/ST10XME and C14/IMG1024S Imaging Systems

Click on image to enlarge

AP155/ST10XME:

f/7 focal ratio, F=1085mm

4 exposures of 20 minutes binned 1x1

80 minutes total exposure time

Custom Scientific 3nm Ha filter

C14/IMG1024S Dream Machine

f/12.46 focal ratio, F=4430mm

3 exposures of 20 minutes

60 minutes total exposure time

Custom Scientific 3nm Ha filter