“Hipparcos”的概念、定义、翻译、参考文献-科学参考

Hipparcos

Astronomy

An astrometry satellite launched by the European Space Agency in 1989 August. The name is an acronym for High Precision Parallax Collecting Satellite. It measured the position, brightness, proper motion, and trigonometric parallax of 118 218 stars down to 12th magnitude to an accuracy of better than 0″.002. It did so by measuring angular separations between pairs of stars with a 0.29-m telescope as it scanned the sky continuously about a slowly varying rotation axis. Simultaneously, the satellite’s star mappers measured the magnitude and colour of over a million stars down to about 10th magnitude, plus their positions to about one-tenth the accuracy of the main survey; these observations were used to construct the Tycho Catalogue. Observations ended in 1993. The Hipparcos Catalogue was published in 1997, with a revised version in 2007.
http://sci.esa.int/hipparcos ESA mission website.

Space Exploration

A European Space Agency satellite launched on 8 August 1989 to measure the positions, distances, motions, brightnesses, and colours of stars to an accuracy far beyond that attainable from the ground. Its name recalls the ancient Greek astronomer Hipparchus, who compiled the first known star catalogue, and is also an acronym for High Precision Parallax Collecting Satellite. Hipparcos observed until 1993. The main Hipparcos Catalogue of 118 218 stars was published in 1997. An auxiliary catalogue of lesser accuracy, containing over a million stars, was called the Tycho Catalogue. Further data analysis led to the expanded Tycho 2 Catalogue containing over 2.5 million stars, published in 2000, including 99% of all stars down to magnitude 11, almost 100 000 times fainter than the brightest star, Sirius.

单词	Hipparcos
释义	Hipparcos Astronomy An astrometry satellite launched by the European Space Agency in 1989 August. The name is an acronym for High Precision Parallax Collecting Satellite. It measured the position, brightness, proper motion, and trigonometric parallax of 118 218 stars down to 12th magnitude to an accuracy of better than 0″.002. It did so by measuring angular separations between pairs of stars with a 0.29-m telescope as it scanned the sky continuously about a slowly varying rotation axis. Simultaneously, the satellite’s star mappers measured the magnitude and colour of over a million stars down to about 10th magnitude, plus their positions to about one-tenth the accuracy of the main survey; these observations were used to construct the Tycho Catalogue. Observations ended in 1993. The Hipparcos Catalogue was published in 1997, with a revised version in 2007. http://sci.esa.int/hipparcos ESA mission website. Space Exploration A European Space Agency satellite launched on 8 August 1989 to measure the positions, distances, motions, brightnesses, and colours of stars to an accuracy far beyond that attainable from the ground. Its name recalls the ancient Greek astronomer Hipparchus, who compiled the first known star catalogue, and is also an acronym for High Precision Parallax Collecting Satellite. Hipparcos observed until 1993. The main Hipparcos Catalogue of 118 218 stars was published in 1997. An auxiliary catalogue of lesser accuracy, containing over a million stars, was called the Tycho Catalogue. Further data analysis led to the expanded Tycho 2 Catalogue containing over 2.5 million stars, published in 2000, including 99% of all stars down to magnitude 11, almost 100 000 times fainter than the brightest star, Sirius.
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