What an amazing night transparency excelent apart from the 62% moon in the way.
I thought I would have another go at M42. I wasnt happy with the previous posted image, well that was really just a test to get the PHD to work ( still no luck ). Apologies for slightly elongated stars.
Object: M42
Type: Reflection & Emission Nebula 1270 Light Years Distant.
Constellation: Orion
Date: 24th January 09
Equipment: William Optics Megrez 90 Canon EOS 40D
Subframes: 30 x 30 second exposures unguided at ISO800 and
Processed: 10 x 30 sec darks were captured & subtracted. Stacked using Deep Sky Stacker,
Processed in Images Plus 2.0 with a DDP stretch. 10 Iterations on a adaptive Richardson Lucy deconvolution filter.
Notes: This cropped Image was taken under a 62% illuminated moon.
Any exposure over 30 seconds was badly washed with moonlight so I kept it to that and the result is excellent. I also used Deep Sky Stacker programme for the calibration and stacking it was very easy to use and a great deal quicker than manual registration of each image. I used med fine quality JPEG as I have a small problem when I ask it to use RAW even with an empty card the camera says it is full and will not take an image.
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