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Walraven photometry of nearby southern OB associations
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.
| Broad-band photometry of selected southern ultraviolet-bright stars.
Not Available
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The present star sample is contained in the Bright Star Catalogue andits Supplement, augmented with a further supplement of 788 stars foundduring various observing programs over the past 40 years. Accurate,four-color and H-beta, or (RI), photometry is available for most of thesupercluster members. The criteria for membership are the comparisons ofthe proper motion, radial velocity, and luminosity obtained from thesupercluster parameters with the observed motions and the luminosityderived from the photometric parameters. New proper motions, based onall available catalogs, have been derived for the additional 788 starsdiscussed here, as well as all supercluster members.
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An all-sky survey of ultraviolet objects is presented together with astatistical analysis that leads to the conclusion that there is asignificantly higher population of hot subdwarfs lying below themain-sequence than hitherto thought. The distribution of all ultravioletobjects, main sequence ultraviolet objects, and MK unclassifiedultraviolet objects are shown in galactic coordinates, and the absolutemagnitudes and color-color diagrams for these groups are presented.Scale heights are derived, giving values similar to planetary nebulaefor the hottest groups.
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Quilla |
| Ascensión Recta: | 10h47m30.61s |
| Declinación: | -69°26'15.8" |
| Magnitud Aparente: | 6.34 |
| Distancia: | 383.142 parsecs |
| Movimiento Propio en Ascensión Recta: | -5.6 |
| Movimiento Propio en Declinación: | 0.2 |
| B-T magnitude: | 6.22 |
| V-T magnitude: | 6.331 |
Catálogos y designaciones:
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INHABITED SKY
