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TOPIC: FL Lyrae

Blobrana

L

Posts: 131433

Date: Dec 18 21:39 2015

HD 179890	Permalink

Title: An Exo-Jupiter Candidate in the Eclipsing Binary FL Lyr Author: V. S. Kozyreva, A. I. Bogomazov, B. P. Demkov, L. V. Zotov, A. V. Tutukov Light curves of the eclipsing binary FL Lyr acquired by the Kepler space telescope are analyzed. Eclipse timing measurements for FL Lyr testify to the presence of a third body in the system. Preliminary estimates of its mass and orbital period are > 4M_Jupiter and > 7 yrs. The times of primary minimum in the light curve of FL Lyr during the operation of the Kepler mission are presented. Read more (1413kb, PDF) __________________

Blobrana

L

Posts: 131433

Date: Dec 18 21:37 2015

FL Lyrae	Permalink

FL Lyrae (also FL Lyr, BD+46° 2641, HD 179890, HIP 94335, KIC 9641031 and SAO 48190) is a magnitude +9.36 eclipsing binary star located 420 ± 40 light years away in the constellation Lyra. Right ascension19h 12m 04.86170s, Declination+46° 19' 26.8632" The variability of this system was discovered from photographic plates in 1935. It is a binary star system with an orbital plane that is nearly aligned with the line of sight to the Earth. Once every 2.1781542 day orbit, each of the closely orbiting stars eclipses its partner, causing a net magnitude drop to 9.4 during the primary eclipse and to magnitude 9.1 when the secondary component is eclipsed. The secondary member covers 51% of the larger star during the primary eclipse, while the primary covers 88% of the secondary. Read more __________________

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