These two patches of nebulosity lie in the constellation of Cepheus the King.
I was using an Atik 383L mono CCD camera piggybacked on my ten inch reflector mounted on a Vixen Atlux mount with a 135mm lens. I attached narrowband filters to the front of the lens and captured two minute sub frames. I then combined them with matching dark frames with flat field frames to reduce the effect of noise and vignetting in the final image.
The total exposure time was 56 minutes using a H Alpha filter, 46 minutes using an O111 filter, 16 minutes using an S11 filter and 6 minutes using a blue filter.
Hubble Palette
RGB
Hubble Palette + RGB
Mosaic image
