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TYC 6867-143-1


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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.

Determination of effective temperatures and surface gravities of metal-deficient K-G giants in the Vilnius photometric system
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Catalogue of Metal-Deficient F-Stars to M-Stars - Part One - Stars Classified Spectroscopically - Supplement One
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Metal-Deficient Giants in the Galactic Field - Catalogue and Some Physical Parameters
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Three-dimensional calssification of F-M type halo stars in the Vilnius photometric system
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Six new giants with large metal deficiency.
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观测天体数据

星座:人馬座
右阿森松:18h47m05.49s
赤纬:-26°15'02.8"
视星:10.107
右阿森松适当运动:-14
赤纬适当运动:-12.3
B-T magnitude:11.411
V-T magnitude:10.215

目录:
适当名称
TYCHO-2 2000TYC 6867-143-1
USNO-A2.0USNO-A2 0600-37493243
HIPHIP 92166
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