... I analysed part of a set of observational data taken by David Weldrake, looking through it for planetary transits and variable stars. ... I also created fake light curves of variable stars, including planetary transits, so that I would have a better understanding of how the light curves of real objects would behave. ... Once the light curves have been obtained they are analysed for any periodic variations in the flux that could be the signature of a variable star or a planetary transit. ...