Thanks Ray. I was surprised at the amount of detail captured. I am considering the same mosaic using 60s (maybe 120x60s) captures to see if I can tame the stars and the centre of M42. Or maybe try for a 2-panel mosaic and HDR with some much shorter exposures. I am still trying to get a feel for the Pier 4 equipment. With the modern CMOS sensor the fact that bias frames are not used has not been detrimental to the image.
I have been using the Green Noise Removal in Siril to remove the green caste (see attachment for a 'before' and 'after' comparison) - this is a temporary solution until I can get to grips with HSL Selective Colour in APP. The main parts of APP used were Crop, Remove Light Pollution and Calibrate Star Colours plus using a pre-set DDP, contrast and saturation.
When a deep sky image is uploaded to Astrobin it is automatically plate solved. I did nothing for the annotation to arrive. I think the solving is performed via the Nova Astrometry web service.
The LDN 1622 came out well.
Here is a better one of that region.
I have wondered how many stars are in that image?
Dave
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