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Science Astronomy Data Archives Stellar and Astrometric
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The Hipparcos Space Astrometry Mission
European Space Agency's Hipparcos mission. Research tools, news, catalogues, education resources, and data.
A New Reduction of the Hipparcos Catalogues
ESA announcement of a recalculation of the data which improves accuracy by compensating for systematic errors of thermal and micrometeoritic origin. (September 27, 2007)
The Hipparcos Space Astrometry Mission
European Space Agency's Hipparcos mission. Research tools, news, catalogues, education resources, and data.
A New Reduction of the Hipparcos Catalogues
ESA announcement of a recalculation of the data which improves accuracy by compensating for systematic errors of thermal and micrometeoritic origin. (September 27, 2007)
Last update:
August 16, 2020 at 6:55:09 UTC
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