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HD 20558


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Radial velocity measurements. II - Ground-based observations of the program stars for the HIPPARCOS satellite
New radial velocities for 446 stars of magnitude 9.0 or brighter in 1616-sq-deg fields of the Northern Hemisphere are determined by automaticPDS measurement of 80-A/mm-dispersion spectra obtained at theObservatoire de Haute Provence using a 17-cm-diameter objective prism.The fields were selected to provide data for the input catalog of theESA Hipparcos astrometric satellite. The measurement techniques andprecision are discussed, and the results are presented in extensivetables and graphs.

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观测天体数据

星座:英仙座
右阿森松:03h20m13.97s
赤纬:+46°46'51.6"
视星:7.525
距离:255.102 天文距离
右阿森松适当运动:-4.6
赤纬适当运动:-0.4
B-T magnitude:9.155
V-T magnitude:7.66

目录:
适当名称   (Edit)
HD 1989HD 20558
TYCHO-2 2000TYC 3311-2125-1
USNO-A2.0USNO-A2 1350-03314522
HIPHIP 15541

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