Depend of the balmer line, they are some difference between each curve and changes in intensity over time is not the same from one balmer line to another.
The order for H alpha (from minimum intensity to maximum) are Black curve, Green Curve, Blue Curve, Red curve and Cyan curve (the last spectrum from last night)
But for H Gamma, the orderer is Blue, Red, Black, Cyan and Green.
I'm looking to search some information about P Cyg, but I haven't find anything.




And a merge spectrum from 4500 to 5200 Å
