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Lunar image based on 30 x 1/200 secs.  D5000 Nikon DSLR with 2" adaptor, Skywatcher Neodymium Light Pollution filter and C8-N. 

Stacked with Python's openCV ECC alignment and a home-grown Python program.

There was quite a lot of sensor noise in the original photos at high magnification which has totally disappeared after stacking, however all the craters have a slight echo, which is also in the original photos (all 30 of them), so what caused this?  Is there maybe a wobble from the mirror opening and closing?  I'll check the tightness of all the camera attachments very carefully next time and make sure the focus is fully locked down.

From the album:


  • 14 images
  • 2 image comments

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