Analysis of Cepheids based on photometric data from the Pi of the Sky experiment

One of the goals of "Pi of the Sky" project is to observe and analyze variable stars. In the second edition of variable stars we have identified over 70 Cepheids, which we classified further analysis. We identified type of pulsation of these stars using "Pi of the Sky" data collected since 2006. This paper describes analysis of Cepheids based on Fourier decomposition, which is powerful method for classification purposes.