Membership in the open cluster NGC 6494 - Astrometry with a PDS microdensitometer

Details Membership in the open cluster NGC 6494 - Astrometry with a PDS microdensitometer Membership in the open cluster NGC 6494 - Astrometry with a PDS microdensitometer

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....88..102s&link_type=abstract

Astronomy and Astrophysics, vol. 88, no. 1-2, Aug. 1980, p. 102-107.

Astronomy and Astrophysics

Astrophysics

14

Astrometry, Imaging Techniques, Open Clusters, Star Distribution, Microdensitometers, Milky Way Galaxy

Scientific paper

An image position finding procedure for PDS microdensitometer measures
of astrometric plates is described and applied to the open cluster NGC
6494. Probabilities of membership based on relative proper motions for
304 stars in the cluster field yield a cluster proper motion dispersion
(m.e.) of 0.0005 and 169 probable members.

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