Results from the Wide Angle Search for Planets Prototype (WASP0) II:   Stellar Variability in the Pegasus Field
  Recent wide-field photometric surveys which target a specific field for long durations are ideal for studying both long and short period stellar variability. Here we report on 75 variable stars detected during observations of a field in Pegasus using the WASP0 instrument, 73 of which are new discoveries. The variables detected include 16 delta Scuti stars, 34 eclipsing binaries, 3 BY Draconis stars, and 4 RR Lyraes. We estimate that the fraction of stars in the field brighter than V ~ 13.5 exhibiting variable behaviour with an amplitude greater than 0.6% rms is ~ 0.4%. These results are compared with other wide-field stellar variability surveys and implications for detecting transits due to extra-solar planets are discussed. 
Stephen R. Kane, T. A. Lister, Andrew Collier Cameron, Keith Horne,   David James, Don L. Pollacco, Rachel A. Street, Yianni...