Demonperformer Posted June 30, 2015 Share Posted June 30, 2015 I have, for the first time, tried making a "star mask" in DSS after completing the processing and am slightly confused by the result. My understanding was that it was supposed to produce a "gaussian spot" on the position of each star that it detects. As you will note from the attached, this is not quite what it has done.Have I got it wrong and it is actually supposed to do this?Alternatively, any thoughts on why it has if it isn't?Thanks. Link to comment Share on other sites More sharing options...
lensman57 Posted July 1, 2015 Share Posted July 1, 2015 I have, for the first time, tried making a "star mask" in DSS after completing the processing and am slightly confused by the result. My understanding was that it was supposed to produce a "gaussian spot" on the position of each star that it detects. As you will note from the attached, this is not quite what it has done.Have I got it wrong and it is actually supposed to do this?Alternatively, any thoughts on why it has if it isn't?Thanks.Your subs are not Flat fielded. You can easily tell this by the appearance of the image which shows severe vignetting. what ever DSS has done appears to be concentrated around the central ring.A.G Link to comment Share on other sites More sharing options...
Demonperformer Posted July 3, 2015 Author Share Posted July 3, 2015 True, I don't take flats (still considering the most cost effective way to do that with different scope & lens sizes), but I don't understand why that would cause DSS to 'migrate' all the stars outwards? Link to comment Share on other sites More sharing options...
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