Quote:
Originally Posted by sil
+1 if you've got lots of noise and/or distorted/streaking stars these tools can fail. In difficult cases i use the Dynamic Alignment tool to register the first five frames then integrate them to give me a cleaner image I then use as my source target image for StarAlignment or batchpreprocessing to register all the frames against. Or in worst cases i just use DA for the whole registration process. Before all this I tend to run the Subframe Selector script to find the worst frames (where the stars are most distorted) and weed them out first so I'm not fighting vibration wiggles in the source.
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Thanks for that. In the end PI using Star Alignment worked best so I got through it! I think a few subs with elongated stars was throwing it off.
Quote:
Originally Posted by Paul Haese
In CCDstack2 Greg you might try using star match. I found it very accurate and you can ramp up the amount of stars to use. CCDIS seems to work best when there are not heaps and heaps of stars in the field.
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Thanks Paul. Star Snap? Yes I ended up using that and it worked better than the CCDIS plugin but still not 100%. PI ended up working the best. Still not 100% ideal but close. Life is always harder in AP when the basics are not done super well like perfect autoguiding etc etc.
Greg.