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HD 196541


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Visual polarization measurements in the Cepheus flare
We present polarization measurements on a stellar sample located in alarge area in Cepheus. The observations were made with the 2-m telescopeat the Pic du Midi (France), around 4350 A and with an accuracy of thepolarization degree of the order of 0.0001. At large scales, we findthat the galactic magnetic field as given by the direction of thepolarization (alignment of the dust) is, roughly speaking, parallel tothe galactic plane in the Cassiopeia cloud, with a scale size of theorder of 100 pc, while it is turned by about 90 in the Cepheus cloud. Atsmall scales, in both the Cepheus and the Cassiopeia clouds, the COcontent has little correlation with the degree of polarization.

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观测天体数据

星座:天龍座
右阿森松:20h33m24.94s
赤纬:+69°40'17.5"
视星:7.667
距离:202.429 天文距离
右阿森松适当运动:-8.1
赤纬适当运动:-9.4
B-T magnitude:9.513
V-T magnitude:7.82

目录:
适当名称   (Edit)
HD 1989HD 196541
TYCHO-2 2000TYC 4451-1580-1
USNO-A2.0USNO-A2 1575-04452603
HIPHIP 101434

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