I know the feeling. I’ve been doing astronomical spectroscopy for over 10 years now and the curve has still not tailed off yet !
Note, I suspect the spectrum will not have been corrected for instrument response/extinction so the shape of the spectrum will not represent the actual spectral energy distribution. There may be some spectra of standards around taken on the same night though which could be used to produce a (relative) flux calibrated spectrum to give us an idea of temperature.
Cheers
Robin