StuartJPP Posted August 28, 2017 Share Posted August 28, 2017 ...so pretty typical for UK imaging then Friday's weather prediction for Saturday night in and around Horncastle was clear skies, but as time got closer to crunch time, the clouds started forming, not only on the weather site but also in the skies. Since I haven't been out for ages I thought I'd set up anyway. I didn't expect it to be a great night for imaging, possibility of mist if it was clear, and it was quite warm so I thought that I'd abandon plans for a faint object and try to nail M31 instead. I still haven't imaged it properly since starting to use my Canon 6D almost 3 years ago. So setup was quite quick and easy, especially since I trimmed all my cables and routed them for no snagging about 6 months ago. Polar alignment was with PoleMaster and was a breeze, everything was just right, except that as soon as I was polar aligned, the cloud came in at around ~22:00pm. After about an hour of waiting, I managed to get about 7 semi-decent subs before the cloud once again came rolling in at ~23:45. Then another wait of about an hour and a half. So at about 01:30 it cleared up and I managed to get another ~25 subs of varying quality, they weren't too bad but certainly not great. Because the street lights have been replaced with LED ones I didn't use the IDAS LPS D1 filter at all, which is a first for me from this site. The subs were quite a bit orange but they corrected decently enough. Anyway, enough waffle. Here's my initial processing attempt. Baader modified Canon 6D Canon 500mm f/4 L IS @ f/4 32 x 300 second subs at ISO800 100 Bias 25 flats No Darks Avalon Instruments M-Zero PHD2 and QHY5L-II-M and miniGuideScope for guidingAPT for image acquisition, GOTO++, plate solving and dithering Thanks for looking and as always comments and criticisms appreciated. M31 - Andromeda Galaxy by Stuart, on Flickr Corner crops of an unprocessed sub (should have used the IDAS filter as there still seems to be some Sodium LP in the area): PHD2 Log: The setup for those who haven't seen it: How the weather changed from Friday evening to Saturday evening (I know I shouldn't be using BBC Weather but I find it just as inaccurate as all the other weather sites): 15 1 Link to comment Share on other sites More sharing options...
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