  Following our predictions on detectability, very weak lines of the SH
molecules have been reported as identified in the photospheric spectrum of the
Sun. This could be the first detection of a mercapto radical in the solar
spectrum, thus placing confidence in the solar abundance of Sulfur. The
observations additionally tested the utilized theoretical band oscillator
strength. Sunspots being cooler than the photosphere are the hosts to a large
number of molecular species. However, owing to photospheric radiation scattered
into the observed umbra, the discoverers could not detect the lines of SH in
the sunspot spectrum where they are expected to show larger than the
photospheric equivalent widths (EWs in short). Detection of weak lines in
photospheric spectrum coupled with a no-detection of the relatively strong same
lines in the sunspot spectrum might cause doubts on the detection itself. The
above problem is investigated here in detail with a choice on photospheric and
sunspot models and micro-turbulence values. The new results indicate that the
predicted sunspot lines are about half intense than reported before and the
lines remain of detectable strengths. Further, a need for a laboratory
determination of oscillator strengths is felt.
