A high resolution spectrum of a large sunspot recorded
by Brynildsen et al. (1989) with the Fourier Transform
Spectrometer at the McMath
telescope of NSO/NOAO at Kitt Peak, is compared with the laboratory FeH
spectrum. The present umbral spectrum is from a large sunspot of
diameter arcsec. The spot is denoted San Fernando 535. The
magnetic field strength of this spot umbra is
(Brynildsen et al. 1989). This atlas also gives the corresponding
photospheric spectrum from a quiet region very close to the spot.