RR Lyrae type stars, ST Boo and RR Leo: 2007 Observations and the   preliminary results of the frequency analaysis
  We present BVR light curves of pulsating stars, ST Boo and RR Leo, obtained between March and September 2007 at the Ankara University Observatory (AUG) and the T\"{U}B{\.I}TAK National Observatory (TUG). Although these observational data are insufficient to obtain the reliable results for a frequency analysis of ST Boo and RR Leo stars, in this study, we tried to investigate the pulsation phenomena of these two stars, as an overview, using the Period04 software package. As preliminary results, we present the possible frequencies for ST Boo and RR Leo. 
Fehmi Ekmek\c{C}{\.i}, Lale \c{C}el{\.i}k, H. Volkan \c{S}enavci
astro-ph.SR