I'm still trying to improve the quality of the spectra that I can achieve from my L200 spectrograph. I have changed the camera to a ST8XME and this has given me a wider field.
Attached is an attempt at Antares in the region of Ha. Lots of lines are visible including the Na doublet.
Very nice result!
Have you had the chance to compare your spectrum with the reference from Richard Walkers Spectral Atlas?
No I haven't yet but will try. I have also taken a few nights images of delta Sco. The resolution isn't high enough compared to C Buils but it is a start.
And cheaper than flying there to take a sample.
