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HD 198414

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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.
Empirical temperature calibrations for early-type stars Three temperature calibrations of suitable photometric quantities havebeen derived for O and B stars. A sample of 120 stars with reliableT(eff.) determinations has been used for establishing each calibration.The different calibrations have been critically discussed and compared.Temperature determinations for 1009 program stars have been obtainedwith an accuracy of the order of 10 percent.
Photoelectric Photometry of Stars in the Vilnius System in the Area of the North America and Pelican Nebulae Not Available
V, R-magnitudes for comparison stars of nine carbon stars in the Cygnus field. Not Available
La mesure des vitesses radiales au prisme objectif. XII. 5ème Liste de vitesses radiales déterminées au prisme objectif à vision directe Not Available
Photographische Polarisationsmessungen und Dreifarbenphotometrie in Selected Area 40. Mit 7 Textabbildungen Not Available

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观测天体数据

星座:	天鵝座
右阿森松:	20^h48^m26.34^s
赤纬:	+45Â°27'07.6"
视星:	7.64
距离:	240.964 天文距离
右阿森松适当运动:	5.7
赤纬适当运动:	1.1
B-T magnitude:	7.553
V-T magnitude:	7.633

目录:

适当名称
HD 1989	HD 198414
TYCHO-2 2000	TYC 3574-27-1
USNO-A2.0	USNO-A2 1350-12951842
HIP	HIP 102687

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