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HD 181593


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Radial velocity measurements. IV - Ground-based accompaniment to the HIPPARCOS observation program
The paper presents 396 radial velocities of stars distributed in 19fields of 4 x 4 degrees. The study employs the Fehrenbach objectiveprism method and the same measuring technique used in a previous paper(Fehrenbach et al., 1987).

UBV photometry of stars whose positions are accurately known. II
The present report on the UBV observations of stars with favorableastrometric history gives attention to stars of the BD zones lyingbetween 50 and 54 deg. These observations and their reductions wereperformed from August 1983 to August 1984, as described by Oja (1984).Results are presented as tables for both the standard stars and theprogram stars. Comparisons are conducted between the present Vmagnitudes and those of the NPZT (1982) and AGK3R (1978) catalogs.

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观测天体数据

星座:天鵝座
右阿森松:19h18m16.28s
赤纬:+53°27'24.8"
视星:8.376
距离:273.973 天文距离
右阿森松适当运动:3.6
赤纬适当运动:6.3
B-T magnitude:8.432
V-T magnitude:8.381

目录:
适当名称   (Edit)
HD 1989HD 181593
TYCHO-2 2000TYC 3920-1352-1
USNO-A2.0USNO-A2 1425-09598066
HIPHIP 94865

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