Participants at the International Hipparcos Press Conference, 11 April 1988
Participants at the International Hipparcos Press Conference, 11 April 1988.
From left to right, Hamid Hassan (ESA Project Manager, 1985-1989), Roger Bonnet (ESA Director of Science, 1983-2001), Pierre Lacroûte (who proposed a space astrometry mission in 1967), Reimar Lüst (ESA Director General, 1984 to 1990), Michael Perryman (ESA Project Scientist, 1981 to 1997) and M. Le Fèvre (Director of ESTEC at the time) at the International Hipparcos Press Conference at ESA's European Space Research and Technology Centre, ESTEC, 11 April 1988.
At the press conference, Reimar Lüst (ESA Director General, 1984-1990) 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.