The sixth GEOS symposium was held in Marly‑le‑Roi on 21–23 May 1982, gatheringabout forty observers from Belgium, Spain, France and Italy. As in previous years, participants presented observational results, discussed ongoing programmes, and worked in thematic commissions.
Poretti reported photoelectric observations of HD 58050 (OT Gem), confirming slow variations of about 0.02 mag but no short‑period variability. He also presented photoelectric measurements of 1 Per, showing that the published ephemeris remains valid and that visual timings of minima remain essential due to the long duration of eclipses.
Boninsegna discussed CSV 8853 (LO And), showing that the true period is 0.38045 d rather than the earlier 0.190 d value, and raising the possibility of a sudden period change between 1979 and 1981. He also presented new results on CSV 503 Ori (a new RRab) and on VW Peg, where cooperation with German observers has begun.
Figer reviewed BL Cam, confirming it as an RRc pulsator with a period of 56.3 min, based on several seasons of GEOS observations. A refined ephemeris will be published after one final verification.
J.-F. Le Borgne summarised work on GY And (HD 9996), where a suspected 14‑day period remains unconfirmed due to insufficient long continuous series.
The prospection of bright CSV stars produced mostly negative or contradictory results, highlighting the need for coordinated observations.
Lecacheux presented major results on stellar occultations by Pluto, Uranus and the asteroid Lucina, demonstrating the scientific potential of coordinated amateur networks.
Romoli described a week at the Chiran Observatory, while M. Petit (presentation by J. Remis) introduced symbiotic stars and their observational characteristics.
Figer reported on a successful experiment estimating FO Vir’s brightness from photographic trails, showing that the method can detect real variations despite low amplitude.
Bianciardi summarised work on the precision of photographic photometry, comparing several measurement techniques.
The meeting concluded with discussions on GEOS organisation, publication strategy, beginner support, and programme structure. Recommendations included expanding the “Tribune Libre,” improving routine SR observations, reducing the list of bright CSVs, and strengthening internal communication.