  HD 202850 is a late B-type supergiant. It is known that photospheric lines of
such stars vary. Due to macroturbulence the lines are much wider than expected.
Macroturbulence has been linked to stellar pulsations. It has been reported
that there are several B supergiants that undergo pulsations. In our previous
work, we detected a pulsational period of 1.59 hours in this object from data
taken with the Ondrejov 2-m telescope. We continued to investigate this object
and we took several time series with the DAO 1.2-m telescope. Our new data
suggest that there may be some additional pulsational periods in this star. We
present our new results in this poster.
