Astronomy and Astrophysics · 2016 · 115 citations · 21 references
Natural SciencesAstronomyPhysicsAstrophysicsExtragalactic AstronomyObservational AstronomyAstrometric Data ReductionAstrometric Error AnalysisAstrometric InstrumentationExtragalactic Radio AstronomyGround-based AstrometryAstrometric MeasurementAstronomical SourcesCelestial Reference FramesExtragalactic Radio SourcesGaia AstrometryInternational Celestial Reference FrameOptical Astrometric Reference FramesReference Frame Alignment
Context. The first data release from the Gaia mission contains accurate positions and magnitudes for more than a billion sources, and proper motions and parallaxes for the majority of the 2.5 million Hipparcos and Tycho-2 stars.
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T. Prusti, J. H. J. de Bruijne, A. G. A. Brown et al. · Astronomy and Astrophysics · 2016 · 7K citations · Full text
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THE FOURTH US NAVAL OBSERVATORY CCD ASTROGRAPH CATALOG (UCAC4)
N. Zacharias, Charlie T. Finch, Terrence M. Girard et al. · The Astronomical Journal · 2013 · 1.2K citations · Full text
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Natural Sciences, Astronomy, Physics +16