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arXiv · 2509.23278

V717 Andromedae: An Active Low Mass Ratio Contact Binary

S. S. Wadhwa·M. Grozdanovic·N. F. H. Tothill·M. D. Filipovic·A. Y. De Horta
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Abstract

Multi-band photometric analysis of the contact binary V717 Andromedae (V717 And) is presented. The system is found to be an extreme low mass ratio system (q = 0.197) with high inclination (i = 84.5 deg), moderate degree of contact (27%) and near equal temperatures of the components. Period analysis of survey photometry spanning over 6300 days reveals no significant change. Although the system does not demonstrate a significant O'Connell effect there are a number of other markers strongly suggesting the system is chromospherically active. Orbital analysis indicates that the system is stable and not a merger candidate.

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S. S. Wadhwa, M. Grozdanovic, N. F. H. Tothill, M. D. Filipovic, A. Y. De Horta. 2025-09-27. V717 Andromedae: An Active Low Mass Ratio Contact Binary. https://doi.org/10.33232/001c.157764

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