NGC1491. This patch of nebulosity lies in the constellation of Perseus. I was using my ten inch f/4.8 reflector, a Vixen Atlux mount PHD auto guiding, an Atik 383L mono CCD camera and a set of Astronomik narrowband filters. 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 was sixty minutes for each filter.
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RGB image
Hubble Palette
RGB + Hubble Palette
