NGC6820 - NGC6823

This lies in the constellation of Vulpecula the Fox. I was using an 80mm refractor at f/6.3, a Vixen Atlux mount, PHD autoguiding, an Atik 383L mono CCD camera and a set of Astronomik narrowband filters, SII, OIII and H-alpha.

I captured 2.5 minute sub-frames with the camera set on times 2 binning mode. I then took matching dark-frames and flat field frames. The total exposure times were 30 minutes for OIII, 30 minutes for SII and 80 minutes using the H-alpha filter.

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Bi-colour

Hubble Palette

RGB

RGB plus Hubble Palette