Second generation astrometric satellites and post-Hipparcos advances in ground-based astrometry

Astronomy and Astrophysics – Astronomy

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Astrometry, Post-Hipparcos Astrometry, Review, Gaia, Digital Sky Survey, Lamost

Scientific paper

Post-Hipparcos advances in both of space and ground-based astrometry is briefly described. First, the current progress of Gaia project is given; the programs of JAMSE and OBSS are introduced as well as the status of SIM PlanetQuest project containing the astrometric content is reviewed. The establishment and maintenance of multi-wavelength reference frame are indicated, especially the extension of Hipparcos catalog down to faint stars, projects of digital sky survey as well as other plans of ground based observations, such as observing binary and multiple stars, solar celestial bodies are described in the third part of this paper. Fourth section gives the progress of several research subjects combining astrometry and astrophysics such as WOCS, SDSS, QUEST RR Lyrae survey and so on. Finally, our preliminary suggestion "the research on astrometric parameters and its application on the field of Galactic astronomy in large scale", which is as an advanced research subject supporting by the National Natural Science Foundation, is submitted during the eleven-five year plan.

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