NGC 1750 + NGC 1758 proper motions (Tian+ 1998)

Details NGC 1750 + NGC 1758 proper motions (Tian+ 1998) NGC 1750 + NGC 1758 proper motions (Tian+ 1998)

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ycat..41310089t&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/131/89. Originally published in: 1998A&AS..131...89T

Physics

Clusters: Open, Proper Motions

Scientific paper

The kinematic state of the open clusters NGC 1750 and NGC 1758 has been studied using newly determined proper motions for 540 stars in a field of 1.5°x1.5° in the Taurus dark cloud region. The proper motions are obtained from the reduction of PDS measurements of 20 plates that span a total time interval of 68 years, resulting in an average proper motion accuracy of 0.67mas/yr. These proper motions are used to determine the membership probabilities of stars in the region by means of a new, improved method described in this paper. Of the 540 stars analyzed here, 332 are found to be probable members of NGC 1750, and 23 are probable members of NGC 1758. The core radii of NGC 1750 and NGC 1758 are determined to be 17.2' and 2.25' respectively. (1 data file).

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