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HD 52517


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Hipparcos astrometry for 257 stars using Tycho-2 data
We present improved Hipparcos astrometry for 257 Hipparcos stars,resolved into 342 components. For 64 of the stars no astrometry wasobtained in the Hipparcos Catalogue, while for the remaining starsadditional components have been added by this solution or the positionshave been revised considerably. We have used the published Hipparcostransit data for the new solutions, together with results from thesecond reduction of the Tycho data for defining better initial values.Based on observations made with the ESA Hipparcos astrometry satellite.Table 3 is only available in electronic form at the CDS via anonymousftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html

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观测天体数据

星座:大犬座
右阿森松:07h00m06.92s
赤纬:-31°37'47.5"
视星:9.188
右阿森松适当运动:-3.3
赤纬适当运动:-59.3
B-T magnitude:9.778
V-T magnitude:9.237

目录:
适当名称   (Edit)
HD 1989HD 52517
TYCHO-2 2000TYC 7089-2774-1
USNO-A2.0USNO-A2 0525-03844905
HIPHIP 33699

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