carastro Posted July 12, 2023 Share Posted July 12, 2023 (edited) Been meaning to image this again since l imaged it back in 2018 in HOO. This time done in Hubble Palette from home Dual Rig ED80 and Atik460EX ED72 and Atik 460EX HEQ5 Ha 20 x 600secs Oiii 8 x 300secs binned Sii 8 x 300secs binned Total 4 hours 40mins SE London Bortle 8 There is a faint PN Lan 21 top left, which is just starting to appear. Edited July 12, 2023 by carastro 22 Link to comment Share on other sites More sharing options...
windjammer Posted July 16, 2023 Share Posted July 16, 2023 I like the subdued palette and the stars are just right - both of which I can never get right. 1 Link to comment Share on other sites More sharing options...
windjammer Posted July 16, 2023 Share Posted July 16, 2023 >>There is a faint PN Lan 21 top left, which is just starting to appear. I looked and looked and looked, but eventually gave up and got the big guns. Is it the same as PK059-00.2 ? Link to comment Share on other sites More sharing options...
carastro Posted July 16, 2023 Author Share Posted July 16, 2023 It is here; 1 Link to comment Share on other sites More sharing options...
windjammer Posted July 16, 2023 Share Posted July 16, 2023 Oh yes, duh! Thanks for the clue! Lanning is a catalogue of UV bright stars (Google) - doesn't appear in the list of catalogues for PI's annotate script. The PK planetary catalogue should have it though, last updated in 2000. Simon 1 Link to comment Share on other sites More sharing options...
Ouroboros Posted July 16, 2023 Share Posted July 16, 2023 That’s a lovely image, @carastro. Why did you use two scopes? And were the images difficult to merge? 1 Link to comment Share on other sites More sharing options...
carastro Posted July 17, 2023 Author Share Posted July 17, 2023 (edited) 14 hours ago, Ouroboros said: That’s a lovely image, @carastro. Why did you use two scopes? And were the images difficult to merge? I always use a dual rig if I can if using my telescopes (can't with my Samyang lens), as you can get twice as much data at a time. In particular I can get Ha only on one scope and concentrate more on Oiii and Sii on the other. I have been doing this for quite a few years and register the two different images in Registar, which I also use to re-size the Oiii and Sii which I bin x 2 (also saves time). I never bin Lum or Ha as you need the detail in those filters. Merging the Ha from two different scopes, once registered in Registar, I blend them together in layers in Photoshop. I am sure there will be a routine in Pixinsight which will do the same. HTH Carole Edited July 17, 2023 by carastro 2 Link to comment Share on other sites More sharing options...
Ouroboros Posted July 17, 2023 Share Posted July 17, 2023 Most ingenious and interesting, @carastro. Thanks. 1 Link to comment Share on other sites More sharing options...
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