Parallaxes And Proper Motions Of 25 Stars From Plates Taken With The 61-Cm Sproul Refractor
ASTRONOMICAL JOURNAL(1983)
摘要
Results from twenty-five parallaxes and relative proper motions from 22 Sproul plate series are discussed. The program stars are spectral type F or later and main-sequence objects except for one which is shown to be a giant. Three are spectroscopic binaries, two are BY Dra stars. First trigonometric parallaxes are presented for five stars.
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关键词
binary star,main sequence
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