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HD 175277


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Age and Metallicity Estimates for Moderate-Mass Stars in Eclipsing Binaries
We estimate the ages and metallicities for the components of 43 binarysystems using a compilation of accurate observational data on eclipsingbinaries for which lines of both components are visible in theirspectra, together with two independent modern sets of stellar evolutionmodels computed for a wide range of masses and chemical abundances. Theuncertainties of the resulting values are computed, and their stabilityis demonstrated. The ages and metallicity are compared with thosederived in other studies using different methods, as well as withindependent estimates from photometric observations and observations ofclusters. These comparisons con firm the reliability of our ageestimates. The resulting metallicities depend significantly on thechoice of theoretical model. Comparison with independent estimatesfavors the estimates based on the evolutionary tracks of the Genevagroup.

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Observation and Astrometry data

Constellation:Scutum
Right ascension:18h55m14.92s
Declination:-15°44'55.6"
Apparent magnitude:7.966
Distance:245.098 parsecs
Proper motion RA:2.5
Proper motion Dec:-11.1
B-T magnitude:8.11
V-T magnitude:7.978

Catalogs and designations:
Proper Names
HD 1989HD 175277
TYCHO-2 2000TYC 6281-234-1
USNO-A2.0USNO-A2 0675-30616083
HIPHIP 92852

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