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The positions in right ascension of 3387 stars belonging to the Santiago67 Catalogue, observed with the Repsold Meridian Circle at Cerro Calan,National Astronomical Observatory, during the period 1989 to 1994, aregiven. The average mean square error of a position, for the wholeCatalogue, is +/-0.009 s. The mean epoch of the catalogue is 1991.84.
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Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.
| Estimation of spectral classifications for bright southern stars with interesting Stromgren indices
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Escorpio |
| Ascensión Recta: | 16h47m56.06s |
| Declinación: | -28°57'25.5" |
| Magnitud Aparente: | 7.743 |
| Distancia: | 1234.568 parsecs |
| Movimiento Propio en Ascensión Recta: | -0.9 |
| Movimiento Propio en Declinación: | -2.9 |
| B-T magnitude: | 8.705 |
| V-T magnitude: | 7.823 |
Catálogos y designaciones:
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