A Hot Spot and Mass Transfer of the Algol-type Binary System WZ Crv
  We present the results of two color VR observation of the Algol-type binary system WZ Crv (12h44m15.19s, -21d25m35.4s) which were obtained using the remotely controlled telescope TOA-150 of Tzec Maun Observatory. We determined the moments of individual minima, the orbital period and its derivative, the initial epoch, color indices V-R and temperature estimates of the components. Also we noticed that the phase curve is asymmetric: the second maximum is higher than the first one. It indicates that there is a spot in the photosphere of one of the stars in this system. 
Natalia A. Virnina (1), Ivan L. Andronov (1), Maxim V. Mogorean (2)
astro-ph.SR physics.space-ph