Catherine Turon speaking at the International Hipparcos Press Conference, 11 April 1988.
At the press conference, Reimar Lüst (ESA Director General from 1984-1990, not pictured) received the Hipparcos Input Catalogue on behalf of ESA, in the presence of members of the Hipparcos science community and ESA Hipparcos team members. The Hipparcos Input Catalogue formed the mission's observing programme: it contained over 100 000 target stars that Hipparcos would monitor to obtain their astrometric properties.
Reimar Lüst served as the ESA Director General from 1984 to 1990. Catherine Turon was the leader of the Input Catalogue Consortium (INCA), tasked with choosing the target stars that Hipparcos would study.