Gaia (Q767805)

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European Space Agency astrometric mission
  • Global Astrometric Interferometer for Astrophysics
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Language Label Description Also known as
English
Gaia
European Space Agency astrometric mission
  • Global Astrometric Interferometer for Astrophysics

Statements

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The main objective of the astrometric instrument (ASTRO) is to obtain accurate measurements of the relative positions of all objects that cross the fields of view of Gaia's two telescopes. (English)
29 September 2015
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The photometry function is achieved by means of two low dispersion optics located in the common path of the two telescopes: one for the short wavelengths (BP) and one for the long wavelengths (RP). (English)
29 September 2015
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The primary objective of Gaia's Radial Velocity Spectrometer (RVS) instrument is the acquisition of radial velocities. (English)
29 September 2015
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About ten minutes later, after separation of the first three stages, the Fregat upper stage ignited, delivering Gaia into a temporary parking orbit at an altitude of 175 km. (English)
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2013-074A
Gaia (satellite)
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ESA's Hipparcos mission was the first space telescope devoted to measuring stellar positions. Operating from 1989 to 1993, [...]. ESA's Gaia mission is astrometry for the twenty-first century, building on the legacy of Hipparcos [...]. (English)
/m/03d24k
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Global Astrometric Interferometer for Astrophysics (English)
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The name ‘GAIA’ was originally derived as an acronym for Global Astrometric Interferometer for Astrophysics. This reflected the optical technique of interferometry that was originally planned for use on the spacecraft. However, the working method has now changed, and although the acronym is no longer applicable, the name Gaia remains to provide continuity with the project. (English)
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ESAGaia
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ESAGaiaMission
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