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The smart place for globe-trotting astronomers to be in May is on the island of San Giorgio in Venice, Italy. There they will gather, 13-16 May, to celebrate and discuss astonishing information about the stars that has come from ESA's Hipparcos satellite.
Published: 6 May 1997
Almost 300 renowned astronomers, astrophysicists and physicists from all over the world will gather in Venice on 13-16 May at the Hipparcos Venice 97 Symposium, organized by the European Space Agency.
Published: 8 April 1997
The observable Universe may be about 10 per cent larger than astronomers have supposed, according to early results from the European Space Agency's Hipparcos mission. Investigators claim that the measuring ruler used since 1912 to gauge distances in the cosmos was wrongly marked.
Published: 14 February 1997
This month, exactly seven years after the launch of the European Space Agency's star-mapping satellite Hipparcos in August 1989, the Hipparcos Catalogue has been completed for distribution to contributing scientists. The satellite expired in 1993, after nearly four years of operation. Since then, number- crunching computers across Europe have digested and reconciled a million million bits of information to pinpoint the positions of 118 000 stars.
Published: 22 August 1996
One of the European Space Agency's most remarkable scientific missions, Hipparcos, completed a significant milestone in its triumphant progress last week, when the group of European scientists responsible for it met with ESA representatives in Paris for a comprehensive review of the project's scientific progress. Just two years after termination of satellite operations they have announced, to their joint satisfaction, that the lengthy process of compiling the largest and most accurate catalogue of star positions ever has been completed.
Published: 6 October 1995
After more than three years of efficient and successful operations, communications with ESA's scientific satellite Hipparcos were terminated on 15 August 1993. The Hipparcos satellite, a purely European undertaking, and the first space experiment dedicated to the highly accurate measurements of star positions, distances, and space motions, was launched in August 1989. Targeted for an operational lifetime of two and a half years, more than three years of high quality star measurements were eventually accumulated, and all of the original scientific goals of the mission have been fully accomplished.
Published: 17 August 1993
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