Revisiting an old image – and a happy new discovery !

In June 2017, I took this image of M57 (the Ring Nebula): It was a bit of a test-run for me: through my Explorer 200p with a mono ASI290MM CMOS camera – 50 integrations of 10 seconds each, gain set just a little high, with no filter other than an IR-blocker in place. The image is also in my Site Gallery. This month, I fed the image through Astrometry.Net (for the full results click HERE). For those who may not have seen the site, it takes a star-field image and “plate-solves” the image to determine the position of the exposure‚Ķ

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