ACR catalog around Celestial Equator (Stone+, 1999)

Astronomy and Astrophysics – Astronomy

Scientific paper

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Fundamental Catalog, Positional Data, Proper Motions, Magnitudes

Scientific paper

We present improved and highly accurate International Celestial Reference System (ICRS) equatorial positions for 1,268,732 stars in 16 astrometric calibration regions located around the celestial equator. Each region is about 7.6°x3.2° in area (~24.3 deg2), contains a large number of stars (18,767 to 263,810), has stellar densities ranging from 765 to 10,772 stars deg-2, covers a wide range in magnitude (9.5

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