GEOS Symposium, Ca’ del Monte Observatory, 26–28 May 2017.
The symposium brought together a wide range of contributions on RR Lyrae stars, eclipsing binaries, photometric techniques and new variable discoveries.
It included presentations on binary candidates in RR Lyrae stars observed with TAROT telescopes (A. Klotz), the RR Lyrae wiki (J.F. Le Borgne), and the SIPS software for calibration, astrometry and photometry (R. Auer).
Further contributions covered the period analysis of NSVS 3200728 (M. Correa), maxima of RR Lyrae stars from the QES database (R. Boninsegna), and an overview of photometric systems (J. Fabregat).
Historical GEOS observations of OP Her were presented by S. Ferrand, while F. Fumagalli reported new variables discovered with the Carona telescopes. Additional talks addressed the generation of precise multicolour light curves (R. Auer), choices of eclipsing binary targets (L. Corp), RR Lyrae theory (J. Vandenbroere), and recent multiband observations of exoplanet transits (J. Fabregat).