  This study is based on observations of MWC560 during the last two
observational seasons (2020/2021 and 2021/2022). Other than looking for
flickering we were interested in following the variability of brightness in the
same period. Looking for similarities in the spectra with other types of stars
is also of great interest to us because it could help clarify the stellar
configuration of such objects. Our observations during the last two
observational seasons of MWC560 confirm the absence of flickering. From the
similarities of the gathered spectra of XX Oph and MWC560 we assume that the
components in XX Oph are a red giant and a white dwarf, which are also
surrounded by a common shell.
