Department of Physics and Astronomy;
Shumen University;
115 Universitetska str.;
9700 Shumen;
Bulgaria;
Institute of Astronomy and NAO;
Bulgarian Academy of Sciences;
Tsarigradsko shossee 72;
1784 Sofia;
Bulgaria;
(Stars; )planetary systems-techniques; photometric-Stars; individual(HAT-P-40 and HAT-P-51);