This was the first
deep sky image with the TEC140 APO. The luminance was taken through the
red filter. M1 was quite low to the West and almost below my local horizon
at the end of the session, it had been in my light pollution dome for some
time. No flat fields were taken as I ran out of time due to work the next
day. The main aim was to check out the guiding on the new set up. I think
the picture shows a reasonable result for the first attempt. By the time
I have fine tuned the balance and settings I should see a further improvment.
Guiding was through an 80mm Celestron f5 scope with the SXV guide camera
and a 3x teleconverter to give a focal length of 1200mm. I used Astroart
with gradient plug in, and Adobe Photoshop for the processing. No deconvolution
has been used, just some DDP and light sharpening.
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