NGC3580.

NGC3580. I took this image using Astronomik narrowband filters SII, OIII and H-alpha and I used the Hubble Palette for the colour data. The setup I was using was my ten inch f/4.8 reflector, a Vixen Atlux mount, PHD auto guiding and an Atik 383L mono CCD camera. I captured five 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 times were 40 minutes for each filter.

Final image cropped