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HD 20936


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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

UBV photometry of wide visual double stars. V. Double stars with mainly K- and M- type primaries.
We present UBV photometric observations of 55 wide visual double starswith K- and M- type primaries. Our observations have been compared andcombined with information available in the literature. At least 58% ofthem are optical pairs.

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观测天体数据

星座:波江座
右阿森松:03h22m06.32s
赤纬:-13°16'23.2"
视星:8.798
距离:386.1 天文距离
右阿森松适当运动:6.9
赤纬适当运动:-14
B-T magnitude:10.249
V-T magnitude:8.918

目录:
适当名称   (Edit)
HD 1989HD 20936
TYCHO-2 2000TYC 5301-472-1
USNO-A2.0USNO-A2 0750-00746219
HIPHIP 15690

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