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HD 187


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Classification of Population II Stars in the Vilnius Photometric System. I. Methods
The methods used for classification of Population II stars in theVilnius photometric system are described. An extensive set of standardswith known astrophysical parameters compiled from the literature sourcesis given. These standard stars are classified in the Vilnius photometricsystem using the methods described. The accuracy of classification isevaluated by a comparison of the astrophysical parameters derived fromthe Vilnius photometric system with those estimated from spectroscopicstudies as well as from photometric data in other systems. For dwarfsand subdwarfs, we find a satisfactory agreement between our reddeningsand those estimated in the uvbyscriptstyle beta system. The standarddeviation of [Fe/H] deter mined in the Vilnius system is about 0.2 dex.The absolute magnitude for dwarfs and subdwarfs is estimated with anaccuracy of scriptstyle <=0.5 mag.

Photoelectric Photometry of 241 Stars in the Vilnius System
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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

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观测天体数据

星座:飛馬座
右阿森松:00h06m47.00s
赤纬:+23°29'37.7"
视星:8.711
距离:157.233 天文距离
右阿森松适当运动:41.8
赤纬适当运动:1.2
B-T magnitude:9.163
V-T magnitude:8.749

目录:
适当名称   (Edit)
HD 1989HD 187
TYCHO-2 2000TYC 1729-1598-1
USNO-A2.0USNO-A2 1125-00044519
HIPHIP 557

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