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HD 157297


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Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.

UBV photometry of stars whose positions are accurately known.
Photometric indices V, B-V, and U-B were measured for about 560 stars ofthe AGK3R and NPZT catalogs between BD declinations 11 deg and 23 deg,using the 40-cm Cassegrain telescope of the Kvistaberg Observatory fromApril 1986 to May 1987. The observation procedure and the reductiontechnique were the same as in the earlier papers of this series by Oja(1984, 1985, 1986, and 1987). The mean errors were calculated from theinternal consistency of the data. The accuracy was found to be the sameas for the earlier parts of the survey.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Yilanci
Sað Açýklýk:17h21m57.13s
Yükselim:+11°40'20.2"
Görünürdeki Parlaklýk:7.064
Uzaklýk:497.512 parsek
özdevim Sað Açýklýk:9.3
özdevim Yükselim:-10.5
B-T magnitude:7.169
V-T magnitude:7.073

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 157297
TYCHO-2 2000TYC 999-1875-1
USNO-A2.0USNO-A2 0975-09111751
HIPHIP 84965

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