Abstract
view Abstract Citations (12) References (31) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Trigonometric parallaxes determined with the Yerkes Observatory 40 inch refractor. VII. Vilkki, E. U. ; Welty, D. E. ; Cudworth, K. M. Abstract Parallaxes and proper motions based on observations with the 40 in. refractor of the Yerkes Observatory are presented for 21 stars. Plates were measured on the MADRAF PDS microdensitometer in Madison, WI, yielding an increase in precision of a factor larger than 2 over previous parallaxes measured on the Yerkes measuring machine. The average standard error of these parallaxes is ±0arcsec.0023. Several of these stars are subdwarfs. Publication: The Astronomical Journal Pub Date: October 1986 DOI: 10.1086/114230 Bibcode: 1986AJ.....92..989V Keywords: Stellar Motions; Stellar Parallax; Stellar Spectra; Subdwarf Stars; White Dwarf Stars; Astronomy full text sources ADS | data products SIMBAD (20) Related Materials (6) Part 1: 1971AJ.....76..932V Part 2: 1973AJ.....78..201V Part 3: 1981LicOB.880....1K Part 4: 1975AJ.....80..647V Part 5: 1978AJ.....83..978V Part 6: 1986AJ.....91.1451V
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