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Global astrometry by space techniques (1980)

Kovalevsky, J.

Springer

Celestial mechanics and dynamical astronomy 22 (1980), S. 153-163

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ISSN: 1572-9478

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The European Space Agency project of an astrometric satellite-HIPPARCOS-is shortly described. It will measure the angles between stars situated in fields separated by about 70°. The precision of the elementary measurements is expected to be of the order of 0″.005. A similar accuracy is found to apply to the basic reduction giving the abcissae of stars referred to great circles on the sky. The final overall reduction should yield accuracies better than 0″.002 in position and parallaxes and 0″.002 per year in proper motions. The main features of the final catalogue are described and some possible consequences for fundamental astronomy are given.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01228802

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