The Eccentric Eclipsing Binary V889 Aquilae

Details The Eccentric Eclipsing Binary V889 Aquilae The Eccentric Eclipsing Binary V889 Aquilae

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.296..109w&link_type=abstract

Astrophysics and Space Science, Volume 296, Issue 1-4, pp. 109-112

Astronomy and Astrophysics

Astrophysics

2

Eclipsing Binary, Apsidal Motion, Light-Time Effect

Scientific paper

Several new times of minimum light recorded with photoelectric or CCD means have been gathered for the 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 (LITE) are given. We found a long apsidal motion period of about 24 400 ± 2400 years and a period of the third body of about 52 ± 2 years.

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