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HD 4012


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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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

A catalog of radial velocities, positions, and proper motions of stars in 19 Kapteyn's northern areas.
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观测天体数据

星座:仙后座
右阿森松:00h44m21.81s
赤纬:+77°12'36.1"
视星:7.833
距离:467.29 天文距离
右阿森松适当运动:-9.1
赤纬适当运动:19.7
B-T magnitude:9.956
V-T magnitude:8.009

目录:
适当名称   (Edit)
HD 1989HD 4012
TYCHO-2 2000TYC 4497-1705-1
USNO-A2.0USNO-A2 1650-00162873
HIPHIP 3472

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