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Browsing by Author "Zacharias, Norbert"

Browsing by Author "Zacharias, Norbert"

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  • Zacharias, Norbert; McCallon, Howard L.; Kopan, Eugene; Cutri, Roc M. (Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2003., 2000-07-22)
    An external comparison between the infrared 2MASS and the optical UCAC positions was performed, both being on the same system, the ICRS. About 48 million sources in common were identified. Random errors of the 2MASS catalog ...