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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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Datos observacionales y astrométricos
| Constelación: | Pegaso |
| Ascensión Recta: | 00h06m47.00s |
| Declinación: | +23°29'37.7" |
| Magnitud Aparente: | 8.711 |
| Distancia: | 157.233 parsecs |
| Movimiento Propio en Ascensión Recta: | 41.8 |
| Movimiento Propio en Declinación: | 1.2 |
| B-T magnitude: | 9.163 |
| V-T magnitude: | 8.749 |
Catálogos y designaciones:
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