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HD 21449


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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:英仙座
右阿森松:03h28m57.23s
赤纬:+40°11'11.3"
视星:7.327
距离:206.186 天文距离
右阿森松适当运动:28.5
赤纬适当运动:2.2
B-T magnitude:8.719
V-T magnitude:7.442

目录:
适当名称   (Edit)
HD 1989HD 21449
TYCHO-2 2000TYC 2865-1370-1
USNO-A2.0USNO-A2 1275-02349439
HIPHIP 16220

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