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European Space Agency's Hipparcos mission. Research tools, news, catalogues, education resources, and data.
ESA announcement of a recalculation of the data which improves accuracy by compensating for systematic errors of thermal and micrometeoritic origin. (September 27, 2007)
European Space Agency's Hipparcos mission. Research tools, news, catalogues, education resources, and data.
ESA announcement of a recalculation of the data which improves accuracy by compensating for systematic errors of thermal and micrometeoritic origin. (September 27, 2007)
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August 16, 2020 at 6:55:09 UTC
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