IC1318, The butterfly nebula.

I took this image under very clear sky conditions with stars visible down to magnitude five. The telescope I was using was my ten inch f/4.8 reflector with a Vixen Atlux mount and an Atik 383L mono CCD camera. I captured five minute sub frames with matching dark frames and combinded them with flat field frames to reduce the effect of vignetting in the final image. The total exposure times were 60 minutes using a H-alpha filter, 40 minutes using an Olll filter and 40 minutes using a Sll filter.

Narrowband Hubble palette

Narrowband Luminance RGB colour

Narrowband plus RGB colour

M57 and its outer shell

This image was taken on two separate evenings. On the first I captured the RGB colour data with total exposure times of thirty minutes for each  filter . however on the second evening I used a total exposure time of three hours using an Astronomik H Alpha filter . The sky conditions were fairly clear with stars visible down to magnitude 4.5 . 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 telescope I was using was a ten inch f/ 4.8 reflector on a Vixen Atlux mount, PHD auto guiding and an Atik 383L mono CCD camera. Notice the galaxy IC1296 near by M57.

RGB

RGB + H-alpha

RGB + H-alpha cropped

NGC6820 and NGC6823

NGC6820 lies near the star cluster NGC2023 in the constellation of Vulpecula at a distance of about 6,000 light years. I took this image under very clear sky conditions with stars visable down to magnitude five. I was using my ten inch F4.8 reflector, a Vixen Atlux mount, PHD auto guiding and an Atik 383L mono CCD camera. The total exposure times were sixty minutes for each narrowband filter and thirty minutes for each RGB filter. I captured five-minute sub frames and matching dark frames and combined them with flat field frames to reduce the effect of vignetting in the final image.

RGB

Full size

Narrowband Hubble palette

Full size

Narrowband + RGB

Full size