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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
| Color excesses of classical cepheids. I
The color excesses of eleven cepheids have been determined with the aidof photometry of field stars found in the proximity of the variables. Acomparison of the color excesses with previous color-excess results isgiven. Four cepheids: RT Aur, DT Cyg, Zeta Gem, and T Vul, haverelatively small and well-established reddening values. These fourstars, along with Alpha UMi, can serve as standards to calibratereddening-free indices with intrinsic color indices such as (b-y) or(B-V).
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Tilkicik |
| Sað Açýklýk: | 19h55m25.17s |
| Yükselim: | +26°42'47.6" |
| Görünürdeki Parlaklýk: | 8.229 |
| Uzaklýk: | 275.482 parsek |
| özdevim Sað Açýklýk: | 17.7 |
| özdevim Yükselim: | 7 |
| B-T magnitude: | 8.431 |
| V-T magnitude: | 8.246 |
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