Modelling the Impact of Star Spots on Stellar Light Curves Spots are a proxy of solar or stellar activity and may indicate the likely severity of the space weather environment within the star system. The analysis of spots on stars similar to the Sun will place the Sun’s activity in a wider context and allow conclusions to be drawn on possible extremes of future Solar activity. To this end we present a model designed to predict the light curves for realistic spot configurations on various parent stars. The model exploits the decrease in the stars brightness as the visibly darker spot moves across the face of the star in order to simulate the overall variations in magnitude. Results from this model will be presented and the feasibility of detecting star spots within current detectors discussed.