Description
We present an extensive high-precision light curve of the bright star psi Centauri, obtained with the star tracker on board the WIRE satellite, which shows that this star is an eclipsing binary. We have obtained photometry from the SMEI instrument on board the Coriolis satellite, which together with the WIRE data allows us to determine the orbital period and photometric parameters of the eclipsing system. The WIRE light curve contains 41334 datapoints with a point-to-point scatter of 2mmag and a total length of 28.7days. The SMEI light curve contains 3448 datapoints with a point-to- point scatter of 20mmag and spas several observing seasons.
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