Abstract
view Abstract Citations (1) References (8) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Parallaxes and Proper Motions. XVIII Upgren, A. R. ; Fu, H. -H. ; Lee, J. T. Abstract Parallaxes and proper motions are presented for 32 stars in 26 starfields. At least 13 of the stars have been designated as subdwarfs on the basis of spectral classification. The list consists entirely of observations measured on the PDS machine at Yale Observatory. The external standard errors in parallax are about half of those found in previous lists in this series. Publication: The Astronomical Journal Pub Date: September 1989 DOI: 10.1086/115200 Bibcode: 1989AJ.....98.1100U Keywords: Stellar Motions; Stellar Parallax; Subdwarf Stars; Astronomical Catalogs; Errors; Stellar Magnitude; Stellar Spectra; Astronomy; ASTROMETRY; STARS: PROPER-MOTION; STARS: SUBDWARFS full text sources ADS | data products SIMBAD (32) Related Materials (19) Part 1: 1968AJ.....73..744G Part 2: 1969AJ.....74..752M Part 3: 1970AJ.....75..319U Part 4: 1971AJ.....76...77K Part 5: 1971AJ.....76...78U Part 6: 1971AJ.....76.1133M Part 7: 1972AJ.....77..392M Part 8: 1972AJ.....77..875T Part 9: 1974AJ.....79..708U Part 10: 1975AJ.....80..711U Part 11: 1976AJ.....81..551B Part 12: 1976AJ.....81.1144W Part 13: 1980AJ.....85...71U Part 14: 1982AJ.....87..141B Part 15: 1983AJ.....88..132U Part 16: 1983AJ.....88.1515W Part 17: 1985AJ.....90..652U Part 19: 1992AJ....104.1203U Part 20: 1999AJ....117.1037W
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