Properties and nature of Be stars. 14

Observational knowledge of KX And - a peculiar emission-line object - is summarized. The formal orbital solution, based on new Ondrejov and all previously published radial velocities of the metallic shell lines in the optical region, led to the improved ephemeris of TmaxRV = JD 2 423 219.319 + 38.919d x E. Radial velocities of various lines measured in the IUE spectra are also presented and analyzed. Amazing phase dependent spectroscopic, light and color variations of the star are documented using original and some published spectra and an abundant 10-year series of Hvar UBV observations and some other photoelectric observations. Although the observed spectral and light variations of KX And bear some resemblance to what has been observed for strongly interacting eclipsing binaries like RX Cas, there are many as yet unexplained puzzles in its behavior and a conclusive proof of its putative binary nature seems to be rather remote. (author). 11 figs., 5 tabs., 42 refs