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Uvbyβ photometry of all stars earlier than G0 and brighter than m_pg_~10.3mag in Selected Area 194
Four-colour and Hβ photometry is introduced for 594 stars earlierthan G0 in the Kapteyn's Selected Area 194. The results give V, b-y,m_1_, c_1_, and β on the standard systems, with overall rms errorsfor one observation of one star of 0.009mag, 0.004mag, 0.006mag,0.009mag, and 0.009mag, respectively. The data cover an area of about5deg x 5deg and is intended for an investigation of the distribution ofthe interstellar medium toward the northern part of the SouthernCoalsack and its surroundings. A comparison to earlier results obtainedby other authors has shown that the c_1_ indices obtained for the latetype stars were underestimated, in average, by 0.020mag. Since suchdifference may account for an error of little more than 10% in theestimated stellar distances, a correction was applied to the c_1_ indexof these stars.
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Centauro |
| Ascensión Recta: | 13h04m47.35s |
| Declinación: | -58°35'05.3" |
| Magnitud Aparente: | 8.83 |
| Distancia: | 184.162 parsecs |
| Movimiento Propio en Ascensión Recta: | -18.8 |
| Movimiento Propio en Declinación: | -4.9 |
| B-T magnitude: | 9.084 |
| V-T magnitude: | 8.851 |
Catálogos y designaciones:
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INHABITED SKY
