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Eccentric Eclipsing Binary YY Sagittarii

Citation:

Wolf M, Niarchos PG, Gazeas KD, Manimanis VN, Kotková L, Paschke A, Zejda M. Eccentric Eclipsing Binary YY Sagittarii. [Internet]. 2006;304:181 - 183.

Abstract:

Seven new precise times of minimum light have been gathered for the triple eccentric eclipsing binary YY Sgr (P = 2d.63, e = 0.16). Its O--C diagram is presented and improved elements of the apsidal motion and the light-time effect are given. We found a new short period of the third body of about 18.5 years in an eccentric orbit (e 3 ≃ 0.4).

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