Investigation physical characteristics of SDSS J214354+124457 cataclysmic variable based on photometric analysis

In this study, multicolor photometric observations of SDSS J214354+124457 cataclysmic variable star was performed, between 28 July 2012 and 31 January 2013 from Ulupınar Observatory and TÜBİTAK National Observatory. According to the photometric observation results, brightness changes shown by the system were examined and the photometric periods were defined. The photometric periods were also compared with the values in literature and orbital period changes were examined. The results obtained from the shape of the light curve and orbital period of the system components were discussed. A long-term light curve profile of the system was created according to observations of the SDSS_J2143 star by CRTS (Catalina Real-Time Transient Survey) telescope and it is defined the star is belonging to which subclass of cataclysmic variable stars.