WASP rotation analysis: Lomb-Scargle periodograms were run for three separate years of WASP photometry, in 2012, 2011, and 2008 (from top to bottom). 1% and 10% false alarm probability levels (estimated with methods from Maxted et al. 2011) are shown as grey and red lines, respectively. The same ~7.5 days rotation signal is marginally detected in 2012 and 2008, while the highest peak in the 2011 data is at 3.73 days, which could be a harmonic of the 7.5 days signal.