The vast researches carried out in the field of variable eclipsing stars photometry, all over the world, has effectively assisted the completion of the star evolution in the binary systems theory. Fortunately, Biruni observatory considering the instruments with which it is equipped, is able to provide the opportunity for the extensive research in this field. Since the beginning of the functioning of this observatory, many stars have been studied with this method. Some samples of researches carried out in this field are given further below. These researches have been done using the  51-cm telescope and the related photometer :

1. Observational

  l And, z And, 44i Boo, UW CMa, RS CVn, d Cap, a CrB, V 380 Cyg, V1143 Cyg, Cyg X-1, AI Dra, q Her, DI Her, Z Her, TT Hya, V 566 Oph, V 1010 Oph, ER Ori, X per, W Ser, n Sgr, V 711 Tau, AW UMa, TX UMa, W UMa, e UMa, BD 305357, HD 47129, HD 224085, HR 4665, RZ Cas, TV Cas, V711 Cyg, DI Her, V1143

2. Theoretical

Teoretical research is also carried out on the following topics: