Description
Relative proper motions, their corresponding errors and membership probabilities of 722 stars in the open cluster NGC 1817 region are given. Equatorial coordinates were computed using Tycho Catalog (Cat. <I/239>) as reference stars. Forty stars from this catalog are in the region under study. The cross-identification of this 40 stars are given as notes. Only 15 stars were found in this region from the PPM Catalog (Cat. <I/146>), and their respective identification is also included in the note5.dat file.
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