title: Cyclic changes in the interacting binary RX Cassiopeiae
abstract: We analyzed 109 years of published photometry and times of minima of the eclipsing interacting binary RX Cas. The inclusion of 171 previously unnoticed minima confirms the tendency of an increase in the orbital period at a rate of 1.84 s per cycle. We also find evidence of variations in the length of the previously reported long photometric cycle and changes in the shape of the orbital light curve. By modeling the orbital light curves at different epochs, and assuming symmetry in the system phys
journal: Astronomy and Astrophysics