Quote:
Originally Posted by Merlin66
Steven,
In the Liege extract you're actually seeing the CaK absorption line at 3933A
This feature is MUCH wider than any of the H Balmer series.
Most of the other features come from Fe /CN....
Check out the complete Liege solar spectrum at:
http://fermi.jhuapl.edu/liege/s00_0000.html
I think more amateurs should get involved in Spectroscopy..."the final frontier" ;-)
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Of course the CaK line.

Many fine images of the Sun have been taken in CaK.
Steven