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HD 167806


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New runaway OB stars with HIPPARCOS
A Monte Carlo method for detection of runaway OB stars fromobservational data is proposed. 61 runaway OB star candidates have beendetected by an analysis of Hipparcos proper motions. The peculiartangential and total transverse velocities have been determined forthese stars. A list of the detected runaway star candidates ispresented. The evidence of a discrepancy between photometric andparallactic distances of runaway OB star candidates is presented.

Spectral classification from the ultraviolet line features of S2/68 spectra. V - Supplement series
The paper presents the ultraviolet classification of more than 450 B-Aand F spectra obtained with the sky survey telescope mounted on the TD1satellite. Concerning abnormal objects, attention is given to the Bestars, the binary stars, the helium weak stars, and the lambda Booobjects. With regard to Be stars, it is concluded that the 1930 Awavelength feature is linked to the existence of either shell structuresor Fe II emission lines in the visual spectral range. In addition, it issuggested that stellar spectra at wavelengths of 1410, 1610-20 and 2400A are equivalent to the He-weak group in the classical range.

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观测天体数据

星座:孔雀座
右阿森松:18h20m42.19s
赤纬:-59°50'23.6"
视星:6.97
距离:305.81 天文距离
右阿森松适当运动:25.5
赤纬适当运动:-5.2
B-T magnitude:6.827
V-T magnitude:6.959

目录:
适当名称   (Edit)
HD 1989HD 167806
TYCHO-2 2000TYC 8756-2474-1
USNO-A2.0USNO-A2 0300-34065221
HIPHIP 89902

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