stash Posted March 21, 2017 Share Posted March 21, 2017 stack 15 x 300 iso 400 of NGC4631 What the heck ?????? https://drive.google.com/file/d/0B9aHac2P5RgVNGlCMzNwWG5mNzQ/view?usp=sharing Link to comment Share on other sites More sharing options...
Tweedledee Posted March 21, 2017 Share Posted March 21, 2017 The wispy curved bits are really weird and a few squarish stars, but the Whale and other galaxies have come out great. Link to comment Share on other sites More sharing options...
philjay Posted March 21, 2017 Share Posted March 21, 2017 Hi Stash What gear did you use? The star shapes look typical of field curvature possibly due to incorrect spacing if you used a reducer. No idea what the lines are. Are they in a single sub? If not its processing artefact Link to comment Share on other sites More sharing options...
stash Posted March 21, 2017 Author Share Posted March 21, 2017 No ignoring the star shapes which I know about it was the wispy bits and the like that have appeared that was baffling. I didnt see any of that on the individual frames (didn't check them all) so I guess it was something with DSS. Will delete all but the frames and rerun DSS. Thanks for the comments/help. Link to comment Share on other sites More sharing options...
stash Posted March 21, 2017 Author Share Posted March 21, 2017 Reprocessed frames after deleteing all DSS masters etc - better must have been DSS throwing a wobble . Thanks folks https://drive.google.com/file/d/0B9aHac2P5RgVVWlBc3VDMXA3eFE/view?usp=sharinghttps://drive.google.com/file/d/0B9aHac2P5RgVbUl5ZVJYRDNVS3c/view?usp=sharing Bassinghamobservatory 1 Link to comment Share on other sites More sharing options...
Guest Posted March 23, 2017 Share Posted March 23, 2017 DSS has thrown me a few wobblies at times. I've had some results that show vertical lines of different colours. I've re-stacked using Microsoft ICE but then there's no dark frame subtraction. Link to comment Share on other sites More sharing options...
Guest Posted March 26, 2017 Share Posted March 26, 2017 DSS threw a wobbly at me today, adding "ghost" stars to Ursa Major! Link to comment Share on other sites More sharing options...
stash Posted March 27, 2017 Author Share Posted March 27, 2017 16 hours ago, Sunny Phil said: DSS threw a wobbly at me today, adding "ghost" stars to Ursa Major! Hope its not catching ! Sure it wasn't the comet 41p ?? Link to comment Share on other sites More sharing options...
Guest Posted March 27, 2017 Share Posted March 27, 2017 9 hours ago, stash said: Hope its not catching ! Sure it wasn't the comet 41p ?? As there were multiple ghost stars, it would only be 41P if there was a micro-lensing event caused by a planetary mass black hole. I ended up processing a single frame. Link to comment Share on other sites More sharing options...
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