This image of M42 was taken on two separate evenings under bright moonlight. On the first evening the sky was reasonable clear with stars visable down magnitude 4.5 however on the second the sky was effected by fog.
I was using a Pentacon 200mm lens piggybacked on my ten inch reflector mounted on a Vixen Atlux mount, PHD auto guiding was used with astronomik narrowband filters and RGB filters attached to the camera lens. The camera was an Atik 383L mono CCD camera Set on x1 bin mode.
I captured five minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of vignetting and noise in the final image.
The total exposure time was 140 minutes using a H Alpha filter , 20 minutes using an O111 filter , 30 minutes using a S11 filter and 15 minutes using a blue filter.
M42, The Orion Nebula .
Hubble Palette
Orion's lower limb .
This image of the lower limb is a mosaic, two images stitched together using Paint Shop Pro software.
Hubble Palette
This image mosaic is a composition of data using a Pentacon 200mm f/4 lens with added data using an 80mm f/6.3 refractor and a 4 inch f/6.3 refractor.
RGB
