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HD 197839


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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.

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观测天体数据

星座:天鵝座
右阿森松:20h45m13.25s
赤纬:+31°46'26.5"
视星:7.702
距离:284.091 天文距离
右阿森松适当运动:3.4
赤纬适当运动:-15.2
B-T magnitude:9.078
V-T magnitude:7.816

目录:
适当名称   (Edit)
HD 1989HD 197839
TYCHO-2 2000TYC 2687-184-1
USNO-A2.0USNO-A2 1200-15844060
HIPHIP 102415

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