Hipparcos stars proper motions (Geffert+ 1997)

Details Hipparcos stars proper motions (Geffert+ 1997) Hipparcos stars proper motions (Geffert+ 1997)

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ycat..41240157g&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/124/157. Originally published in: 1997A&AS..124..157G

Astronomy and Astrophysics

Astronomy

Proper Motions

Scientific paper

Absolute proper motions of 48 Hipparcos stars in nine fields distributed over the northern hemisphere are presented. The proper motions have been recently used as part of the Bonn program for the extragalactic link of the Hipparcos proper motion system. We describe methods which have led to the absolute proper motions of the major part of the Bonn fields for the link. For six fields the extragalactic calibration was achieved using the bright quasar in the centre of the field. In addition, data of three fields of globular clusters were included. For these fields the link to an extragalactic reference system was performed by stars, whose absolute proper motions with respect to galaxies were determined on plates of the Lick astrograph. In addition, we used for the link in one field plates from the ESO Schmidt telescope in combination with measurements from glass copies of the Palomar Sky Survey. The accuracy of a single proper motion is of the order of 2 to 3mas/a for each coordinate. (1 data file).

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