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Hipparcos (in full High Precision Parallax Collecting Satellite) was an Earth-orbiting satellite launched by the European...

Hipparcos (in full High Precision Parallax Collecting Satellite) was an Earth-orbiting satellite launched by the European Space Agency in 1989 that operated until 1993. The satellite measured the distances to more than 100,000 stars by direct triangulation using observations of parallax from either side of Earth’s orbit around the Sun. If Hipparcos measured the parallax of a star to be 0.01 arc-seconds, what is the distance to the star?

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