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Astron. Astrophys. 324, 988-990

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The three-body system V505 Sagittarii

Pavel Mayer

Astronomical Institute, Charles University, Svédská 8, 150 00 Praha 5, Czech Republic

Received 10 June 1996 / Accepted 21 February 1997


It is known that the period of the eclipsing binary V505 Sgr changes, and that the changes can be explained - at least partly - by a light-time effect. The system is also known as a speckle binary. In this paper parameters of the third body orbit are suggested in order to explain both sets of data. Some discrepancies in the size of the orbit and radial velocity data remain. Next periastron passage should be at 1998.9.

Key words: binaries: eclipsing - binaries: visual - stars: individual: V505 Sgr

© European Southern Observatory (ESO) 1997