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ASTRO: M51, M81 and M82
Hi to the group,
With some clear skies here in Manchester UK I managed to get some reasonable galaxy images. Both images were taken using a Skywatcher ED80 and a Starlight Xpress SXV-H9 CCD camera. I used my Celestron Ultima 9.25 and a Philips Toucam Pro webcam as the guide camera with the excellent PHD Guiding software package. It was a bit too windy to image with the U9.25 so they switched roles. Each image is a stack of 30x5 minute exposures at 1x1 binning. I ran out of time to get RGB frames as I had to go to bed - work next day !!!! Processing was done using AstroArt 4 and Photoshop CS. No dark frames were used, but each of the sub-images was corrected using a master flat frame made from 25x1 second images, an illuminated white wall and a T-shirt :-) Regards David Cash |
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