Geometrical element of the system AR Lacertae have been obtained and its colour has has been discussed.The absolute dimensions have been obtained on the basis of the spectroscopic elements given by Sanford (1951).The primary component lies fairly close to the Main Sequence on the log m-log R plot and the secondary falls away from the Main Sequence.The values of the Roche constants indicate that AR Lacertae is a detached system.
UBV light curves of the eclipsing binary systems V364 Cas and MM Cas are presented. A total of eight photoelectric times of minimum light for these stars were derived. The UBV photometric data of V364 Cas that the orbital ...
Twelve photoelectric light curves of six eclipsing binary stars namely GC Cas, WX Cep, UZ Cyg, VW Cyg, AQ Peg and ST Per in two different filters (B and V for the first five binaries and R and I for ST Per) have been ...
