First detailed study of the eccentric binary 2MASS 22425392+5439498 using multi-survey data

We present the first comprehensive photometric and orbital analysis of the detached eclipsing binary 2MASS 22425392+5439498,utilizing multi-survey data from Lapukhin, ASAS-SN, and TESS. The study combines light curves spanning over a decade to determine the orbital period, eccentricity, and evidence for apsidal motion in this previously uncharacterized system. When modeling this system based on photometric data using the JKTEBOP program, we accounted for third-light contamination from a line-of-sight star, limb darkening, and the system’s orbital geometry parameters. The secondary minimum occurs at phase ϕ= 0.4940, indicating a small but significant eccentricity. Based on the modeling results, we estimate the apsidal motion of the system to be very slow (i.e., the apsidal period is very large), and therefore, this motion does not significantly affect the depth of the eclipses.