803 datasets found

Keywords: Astrometry

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  • TGAS stars membership in 128 open clusters

    The Tycho-Gaia Astrometric Solution (TGAS) subset of the first Gaia catalogue contains an unprecedented sample of proper motions and parallaxes for two million stars brighter...

  • 24 nearby open clusters TGAS and HSOY reanalysis

    We have determined stellar membership based on astrometry, primarily from TGAS and HSOY, and multi-band photometry for 24 clusters within 333 pc. The fundamental cluster...

  • Observations of 50 TNOs and Centaurs

    The prediction of stellar occultations by trans-Neptunian objects (TNOs) and Centaurs is a difficult challenge that requires accuracy both in the occulted star position and in...
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