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HD 42918


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Starlight polarization in the direction of two H I complexes
Upper limits to the gas/dust ratio in the direction of two complexes arederived based on 21-cm line observations and starlight polarizationmeasurements. Elongated H I structures parallel to the galactic magneticfield suggest that the gas and dust comprise a common cloud or cloudsystem. Dust producing the starlight polarization is mixed with the H Igas, aiding in estimating the distance for the two H I complexes.Distances of 100 pc for the filament at low velocities and of 200 pc foran intermediate-velocity cloud complex (IVC) are established frompolarimetric data, and possible origins for the filaments and IVC aresuggested.

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观测天体数据

星座:繪架座
右阿森松:06h09m37.85s
赤纬:-59°31'19.6"
视星:7.942
距离:434.783 天文距离
右阿森松适当运动:-6.1
赤纬适当运动:25.8
B-T magnitude:7.778
V-T magnitude:7.929

目录:
适当名称   (Edit)
HD 1989HD 42918
TYCHO-2 2000TYC 8533-1051-1
USNO-A2.0USNO-A2 0300-02069662
HIPHIP 29213

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