The eclipsing variable GSC 4513 2537= V1176 Cas is a recently discovered binary system. We have made high precision CCD observations of it during 2009-2010 and obtained light curves. The photometric parameters and orbital elements, periods of the primary and secondary minima, and U, B, and V magnitudes have also been obtained. The rate of rotation of the apsidal line is estimated to be \( {{\dot{\upomega}}_{obs }} \) = 0.08 ± 0.04 / year. This is 5 times the theoretically predicted \( {{\dot{\upomega}}_{obs }} \) = 0.016 ± 0.005 /year. The bulk (80%) of the theoretical rate of rotation of the orbit is in the relativistic component. Unfortunately, the accuracy of the observed rate of orbital rotation of the orbit is low, so getting a more reliable result will require repeating this study in a few years.
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Translated from Astrofizika, Vol. 56, No. 1, pp. 25–32 (February 2013).
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Kozyreva, V.S., Kusakin, A.V., Krajci, T. et al. The eclipsing binary system with an eccentric orbit V1176 Cas=GSC 4513 2537. Astrophysics 56, 19–25 (2013). https://doi.org/10.1007/s10511-013-9264-y
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DOI: https://doi.org/10.1007/s10511-013-9264-y