ALGORITMO PARA FOTOMETRÍA DIFERENCIAL DE ESTRELLAS VARIABLES Software for Variable Star Differential Photometry RESUMEN

This paper presents the results obtained by develop ing a graphical interface to the utility GUIDE (Graphical User Interface Develop ment Environment) of Matlab ® , which allows you to draw the light curves of vari able stars using the technique of differential photometry. Additionally, the program also allows preprocessing of the images captured by the object of interest, involving flat, dark and bias frames. For the verification of the algori thm, was plotted the light curves of GJ436 and GSC03089-00929, while processin g a series of photographs taken from astronomical data bases, in order to detect transits of their exoplanets.