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HD 235725


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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.

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Observation and Astrometry data

Constellation:Céphée
Right ascension:22h06m35.57s
Declination:+54°31'06.1"
Apparent magnitude:9.135
Proper motion RA:-20.3
Proper motion Dec:-10.9
B-T magnitude:9.636
V-T magnitude:9.177

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 235725
TYCHO-2 2000TYC 3973-1878-1
USNO-A2.0USNO-A2 1425-12817826
HIPHIP 109153

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