Positions and Proper Motions - South (Bastian+ 1993)

Details Positions and Proper Motions - South (Bastian+ 1993) Positions and Proper Motions - South (Bastian+ 1993)

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ycat.1193....0b&link_type=abstract

VizieR On-line Data Catalog: I/193. Originally published in: Astronomisches Rechen-Institut, Heidelberg (1993)

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2

Positional Data, Proper Motions

Scientific paper

PPM South gives positions and proper motions of 197179 stars south of about -2.5 degrees declination. Its main purpose is to provide a convenient, dense and accurate net of astrometric reference stars on the southern celestial hemisphere. This net is designed to represent as closely as possible the new IAU (1976) coordinate system on the sky, as defined by the FK5 star catalogue (Fricke et al., 1988). In other words, it is a representation of this system at higher star densities and fainter magnitudes. PPM South is the southern-hemisphere complement to the PPM Star Catalogue (Roeser and Bastian, 1991), which covers the northern hemisphere, plus a strip between the equator and about -2.5 degrees declination. At the border line a continuous transition between the northern and southern part was tailored in such a way that no overlap, nor gaps, nor double entries occurred. See file desc for complete explanations provided by the authors. (2 data files).

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