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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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观测天体数据

星座:盾牌座
右阿森松:18h55m14.92s
赤纬:-15°44'55.6"
视星:7.966
距离:245.098 天文距离
右阿森松适当运动:2.5
赤纬适当运动:-11.1
B-T magnitude:8.11
V-T magnitude:7.978

目录:
适当名称   (Edit)
HD 1989HD 175277
TYCHO-2 2000TYC 6281-234-1
USNO-A2.0USNO-A2 0675-30616083
HIPHIP 92852

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