Detailed period study of Delta Capricorni

Detailed period study of the eclipsing binary system Delta Cap is presented. Available times of minima have been classified, and two minima have been found off the instant period trend. A new period of 1.^d0227789 has been given. Period changes in different portions of the O?C diagram have been estimated, which range from 6.4×10^?6 d to 1.8×10^?3 d (?), the average being 3.5×10^?5 d. A sinusoidal variation is evident in the O?C diagrams, which is indicative of the possible presence of a third body, having a period of nearly 62 years, however, it is yet to be confirmed.