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UBV beta Database for Case-Hamburg Northern and Southern Luminous Stars
A database of photoelectric UBV beta photometry for stars listed in theCase-Hamburg northern and southern Milky Way luminous stars surveys hasbeen compiled from the original research literature. Consisting of over16,000 observations of some 7300 stars from over 500 sources, thisdatabase constitutes the most complete compilation of such photometryavailable for intrinsically luminous stars around the Galactic plane.Over 5000 stars listed in the Case-Hamburg surveys still lackfundamental photometric data.
| Mesures de vitesses radiales. VIII. Accompagnement AU sol DU programme d'observation DU satellite HIPPARCOS
We publish 1879 radial velocities of stars distributed in 105 fields of4^{\circ} \times 4^{\circ}. We continue the PPO series \cite[(Fehrenbachet al. 1987;]{Feh87} \cite[Duflot et al. 1990, 1992 and 1995),]{Du90}using the Fehrenbach objective prism method. Table 1 only available inelectronic form at CDS via to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
| Nineteen new spectroscopic binaries and the rate of binary stars among F-M supergiants
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| New UBVRI photometry for 900 supergiants
A description is presented of the results obtained in connection with asystematic program of supergiant photometry on the Johnson UBVRI system.During the eight years after the start of the program, almost 1000 starshave been observed, about 400 three or more times each. The originalselection of stars used the spectral type catalog of Jaschek et al.(1964) to choose supergiants. Since observations were possible from bothChile and Canada, no declination limits were imposed, and no particularselection criteria were imposed other than to eliminate carbon stars.These are so red as to require enormous extrapolations of thetransformation equations.
| Further photometry of Cepheid-like supergiants
Photoelectric photometry in Johnson's UBVRI system has been carried outfor 19 supergiants having spectral classifications similar to classicalCepheids. This is part of a continuing search to find either previouslyundiscovered low-amplitude Cepheids or stable stars within the Cepheidinstability strip on the H-R diagram. Of the present stars, only one, HD101947, has been found to show significant variability.
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Datos observacionales y astrométricos
| Constelación: | Zorra |
| Ascensión Recta: | 20h18m13.83s |
| Declinación: | +24°30'05.1" |
| Magnitud Aparente: | 8.033 |
| Distancia: | 2439.024 parsecs |
| Movimiento Propio en Ascensión Recta: | -2.2 |
| Movimiento Propio en Declinación: | -4.8 |
| B-T magnitude: | 9.019 |
| V-T magnitude: | 8.115 |
Catálogos y designaciones:
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