Physics
Scientific paper
Mar 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.177...59v&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 177, no. 1-2, March 1991, p. 59-63. NSF-supported research.
Physics
2
Stellar Motions, Stellar Physics, Faint Objects, Galactic Rotation, Galactic Structure, Milky Way Galaxy, Stellar Luminosity
Scientific paper
The principal goal of the Yale/San Juan Southern Proper Motion Program (SPM, which is the southern extension of the Lick Observatory Northern Proper Motion Program, NPM), is the determination of absolute proper motions with respect to faint galaxies, which can then be compared with Fundamental-Program proper motions of the same stars. This paper discusses the instrumentation of the SPM, together with the accuracy of the SPM proper motions and the selection of objects to be measured. A comparison of the SPM and the NPM programs is made.
Girard Terrence
Lopez Carlos E. E.
van Altena William F.
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