The eccentric eclipsing binary V889 Aquilae

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Authors

WOLF Marek DIETHELM Roger ZEJDA Miloslav

Year of publication 2005
Type Article in Periodical
Magazine / Source Astrophysics and Space Science
MU Faculty or unit

Faculty of Science

Citation
Field Astronomy and astrophysics
Keywords eclipsing binary; apsidal motion; light-time effect
Description Several new times of minimum light recorded with photoelectric or CCD means have been gathered for eccentric eclipsing binary V889 Aql (P = 11.1 days, e = 0.37). Its (O-C) diagram is presented and improved elements of the apsidal motion and the light-time effect are given. We found a long apsidal motion period of about 24 400 ą 2 400 years and a period of the third body about 52 ą 2 years.
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