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Astrometry in the Future

Published online by Cambridge University Press:  12 April 2016

P. K. Seidelmann
P. K. Seidelmann*
Affiliation:
U.S. Naval Observatory Washington, DC, USA

Abstract

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The introduction of the extragalactic reference frame and the availability of the Hipparcos and Tycho catalogs will have major impacts on changing the accuracy levels of astrometry in the future.

There is a need for accurate densification of the reference frames down to at least 20th magnitude. Also accurate space motions and distances will be required. The ground based observations must be supplemented by space missions. In addition to traditional positional astrometry, the scientific applications of planetary detection, distance scales, multiple star systems, mass detections, solar system motions and geodesy will be advanced by the new accuracies.

Type
Dynamics and Astrometry: Present and Future
Information
International Astronomical Union Colloquium , Volume 165: Dynamics and Astrometry of Natural and Artificial Celestial Bodies , 1997 , pp. 97 - 106
Copyright
Copyright © Kluwer 1997

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