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HD 183956


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Photoelectric Vilnius Photometry of Hipparcos Turn-Off Region Stars
Seven-color photometry in the Vilnius system and photometricclassification in terms of spectral type, absolute magnitude andmetallicity are presented for 145 Hipparcos stars of the turn-offregion, most of which have parallaxes determined to an accuracy of atleast 15%. The stars selected for the observing program included thoseidentified kinematically as intermediate between the thin disk and halo,plus a number of weak-lined stars discovered previously from objectiveprism surveys. The metallicity distribution we find for a kinematicallydefined sample of possible members of the thick disk has a meanabundance [Fe/H]= --0.3 dex and a dispersion of 0.3 dex. Our data seemto suggest a large age for this intermediate population.

A Search for Metal-Deficient Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970ApJS...22..117B&db_key=AST

Micrometer Measures of Double Stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4...45V&db_key=AST

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Observation and Astrometry data

Constellation:Aquila
Right ascension:19h31m32.54s
Declination:+13°09'58.8"
Apparent magnitude:8.511
Distance:73.584 parsecs
Proper motion RA:47.9
Proper motion Dec:28.2
B-T magnitude:9.213
V-T magnitude:8.569

Catalogs and designations:
Proper Names
HD 1989HD 183956
TYCHO-2 2000TYC 1067-1084-1
USNO-A2.0USNO-A2 0975-15141671
HIPHIP 96032

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