2025/05/23 by Pyatnytskyy, Maksym
#FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR)
paper · doi:10.48550/arxiv.2505.18312
We extended the O-C diagram for V965 Cep with all currently available observations in the Johnson V filter and added unfiltered ones. The new, up-to-date O-C diagram shows that the seeming period change previously revealed by the author does not occur uniformly. Instead, the near-parabolic part of the O-C diagram can be a part of a periodic curve. This could be a sign of the second body in the system. Based on our observations, we also estimated the B-V index of the star to be 0.48 ± 0.05 at maximum brightness and 0.57 ± 0.05 at minimum brightness.