we did the ccd photometry of SX Phoenicis type of star BL Cam and AE. The data were collected for BL Cam (three days) and AE Uma (two days) using 132 mm APO at photometric R band from dates 14 Jan26 to 18Jan26.
SX Phoenicis variables are short-period pulsating variable stars characterized by pulsation periods ranging from approximately 0.03 to 0.09 days. They are spectral class of A2 to F5, with effective temperatures around 7500 K, and are distinguished by their low metallicity and position in the instability strip of the Hertzsprung-Russell diagram, near or on the zero-age main sequence.
SX Phoenicis variables are the metal-poor, lower-luminosity and shows the period luminosity relation.
The images were photometrically reduced in data sets using Tycho and ATLAS catalogue. The light curves were analysed using Peranso (Fourier Analysis of Light Curves, Harris).
The spectral frequency domain shows the periods of BL Cam and AE UMa 0.039097 days and 0.086037 days respectively.
