J 2000.0 positions and proper motions of 257 stars in the central part of the Praesepe astrometric standard region |
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| Authors: | Wang Jia-ji and Jiang Pei-fang |
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| Institution: | Shanghai Observatory, Chinese Academy of Sciences, China |
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| Abstract: | We given the J2000.0 position and proper motions of 257 stars in the central 1.5° × 1.5° area of the Praesepe astrometric standard region with accuracies of 0.005?0.10 arcsec for the position in each direction and 0.0002?0.006 arcsec/yr for the proper motions in each direction. |
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| Keywords: | Praesepe—astrometry—proper motion |
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