This image was taken under a moonless clear sky with just light-pollution to contend with.
I used an 80mm f/6.3 refractor, and Atik 383L mono CCD camera, and a Vixen Atlux mount with PHD autoguiding.
I captured 5 minute sub-frames with matching dark-frames and combined them with flat-field frames to reduce the effect of vignetting in the final image.
The total exposure time were 60 minutes using a H-aalpha filter, 60 minutes using an OIII filter and 60 minutes using a blue filter.
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This image is a composition of data captured using three telescopes, an 80mm refractor, a 4 inch refractor and a 10 inch reflector.
