How Do You See Spectral Lines in Near IR from the Sun?

[rp895]

Hi,
Quick spectroscopy question: Say I am looking at the sun with a near IR /IR spectrometer? I know there is H2 and He in the sun, and I assume I will see their spectral lines? If true, how come I see that, and the signal is not drowned by the heat from the sun? (since it is so hot, using stefan-Boltzmann law, i can determine energy, etc etc)
Thanks
rp895

 

[mathman]

The lines you will see are absorption lines (dark) from the cooler matter near the surface. The background spectrum is continuous and bright.