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Sadr, M29 and stuff

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Now we're getting some proper dark again I thought I'd dust off the star tracker and do a bit of wide(ish) field imaging. A 135 lens on the converted Canon and 1 min exposures isn't too taxing on the home built mount. This is Sadr and surroundings in Cygnus. M29 is just left of centre. ISO 800 and f4. 30 x 1 min + darks and flats.

Thing is, the Ha comes out well but I never seem to get colour in the stars. Anyone got any ideas?

21037371804_3efdad475f_k.jpg003 m39p1reduced by Alan Piggott, on Flickr

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