The Orion Nebula

M42. The Orion nebula.This image of the Orion nebula reveals a more natural colour composition. I used a ten inch F4.8 reflector, PHD auto guiding and an Atik 383L mono CCD camera. 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 were 20 minutes using a red filter, 20 minutes using a green filter, 40 minutes using a blue filter and 60 minutes using a H Alpha filter:

B33 and C/2014 Q2 Lovejoy

This image has been reprocessed in Astro art using a rotation filter [ Larson Sekanna ]. Notice the structure of the comet's jets.

B33 . This new image of the Horsehead nebula reveals more of its dynamic range in the colour data than the prevous images so far. I was using my ten inch F4.8 reflector, PHD auto guiding and an Atik 383L mono CCD camera. By capturing five minute sub frames, dark frames and flat field frames I reduced the effect of vignetting in the colour data in the final image. The total exposure times were 30 minutes in red, 30 minutes in green, 40 minutes in blue and 60 minutes in H Alpha.