Popular Post P Holdsworth Posted July 4, 2022 Popular Post Share Posted July 4, 2022 Hi all, here's my image of NGC 6888 the crescent nebula. This is 7 hours of 5 minute subs finished on Saturday night using a zwo 294mc pro and the optolong L extreme filter. I've started spending a bit more time on polar alignment with the asi air pro and getting it down to just a few arc seconds which does seem to improve guiding to around 0.6 on average though never seems to get any better than that. I think the image lacks a little bit of contrast which maybe down to no astronomical darkness but even though conditions could be better I don't like to pass up on a clear night! The files have been stacked in astro pixel processor and processed in pixinsight and photoshop. Cheers Paul 11 Quote Link to comment Share on other sites More sharing options...
paul Posted July 4, 2022 Share Posted July 4, 2022 Nicely framed and rich image, you picked up the Oiii well. I like it🙂. 2 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted July 4, 2022 Share Posted July 4, 2022 Great image 1 Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted July 4, 2022 Author Share Posted July 4, 2022 Thanks Paul & Terry much appreciated 👍 Quote Link to comment Share on other sites More sharing options...
Greg M Posted July 4, 2022 Share Posted July 4, 2022 Very nice image. You mentioned "no astronomical darkness" so how far north are you? 1 Quote Link to comment Share on other sites More sharing options...
P Holdsworth Posted July 4, 2022 Author Share Posted July 4, 2022 36 minutes ago, Greg M said: Very nice image. You mentioned "no astronomical darkness" so how far north are you? Hi Greg, I live in Yorkshire 53.59 N 👍 1 Quote Link to comment Share on other sites More sharing options...
Greg M Posted July 5, 2022 Share Posted July 5, 2022 7 hours ago, P Holdsworth said: Hi Greg, I live in Yorkshire 53.59 N 👍 Oh boy, yeah, I get it now. 1 Quote Link to comment Share on other sites More sharing options...
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