On this evening the clouds were closing in fast, so I only managed to capture a total of 30 minutes of data. The total exposure time was 10 minutes using a H-alpha filter for the red channel, 10 minutes with a OIII filter for the green channel and a blue filter. I also took matching dark frames and flat fields to reduce the effect of vignetting in the final image.
The telescope was an 80mm refractor with a Vixen Atlux mount, PHD autoguiding, an Atk 383L mono CCD camera and a set of Astronomik filters.
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The Coathanger
