Present situation on determinations of stellar proper motions with respect to extragalactic system.

Details Present situation on determinations of stellar proper motions with respect to extragalactic system. Present situation on determinations of stellar proper motions with respect to extragalactic system.

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pabei..10...38c&link_type=abstract

Prog. Astron., Vol. 10, No. 1, p. 38 - 47

Astronomy and Astrophysics

Astronomy

Scientific paper

The reference frame composed of extragalactic objects is a quasi-inertial reference frame. Stellar proper motions with respect to an extragalactic reference frame are a valuable database for many fields, such as studies on structure, kinematics and dynamical evolution of the Galaxy, improvment of the galactic structural model, and determinations of corrections to the constants of precession and of systematic errors of fundamental catalogues, and establishment of connection between space-astrometry and geo-astrometry. This paper summarizes the present situation on this work, especially in detail for the Lick NPM program, and the author's propositions to this work.

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