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Beren,
Very good start! Well done.
Using a mono camera and orientating across the chip will give best results.
As you are finding a small chip has limitations....
By trying to fit the zero order and the spectrum across the chip you are limiting the dispersion....
The Sirius calibration - I think the prominent dip is the H beta at 4861 try a calibration based on that....
Focus on the spectrum not the zero order.....
Practice, practise, practice.......
Last edited by Merlin66; 19-02-2017 at 03:13 PM.
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