AM. 05 Scientific Expectations from High Accuracy Astrometry

Details AM. 05 Scientific Expectations from High Accuracy Astrometry AM. 05 Scientific Expectations from High Accuracy Astrometry

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984baas...16..770r&link_type=abstract

Bulletin of the American Astronomical Society, Vol. 16, p.770

Astronomy and Astrophysics

Astronomy

Scientific paper

Star constants, i.e. position, proper motion, parallax, perspective acceleration, and orbital motion, are the measured quantities in the reduction of a series of astrometric observations made over time. This discussion follows the effects on the accuracy of the star constants and on the quantities calculated from them (distances, masses, and radial velocities) for positional measurements with the historical level of accuracy (+/-100 mas) to those currently in development (+/-2 mas) to that for proposed space instruments (up to +/-0.001 mas). Also considered is the expanded list of objects for which astrometric information will become important in increasing the understanding of the universe.

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