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HD 25368


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The variability of UV extinction-curve shapes and its impact upon dereddened UV energy distributions
The magnitude-limited survey provided by ANS satellite data is used toinvestigate the global variability of the shapes of UV extinction curvesand the errors these variations introduce into the UV continua ofreddened objects. Results show that although variations in UVextinction-curve shape are largest in regions of dense nebulosity, theerrors incurred by using a mean curve to deredden an energy distributionare still significant. It is suggested that debumping should be avoidedwhenever a reliable E(B-V) is available, and that errors in dereddenedUV colors can be reduced by employing a local mean extinction curve.

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观测天体数据

星座:金牛座
右阿森松:04h02m04.00s
赤纬:+06°31'25.9"
视星:8.46
距离:347.222 天文距离
右阿森松适当运动:15.1
赤纬适当运动:-10
B-T magnitude:9.714
V-T magnitude:8.564

目录:
适当名称
HD 1989HD 25368
TYCHO-2 2000TYC 79-179-1
USNO-A2.0USNO-A2 0900-00914783
HIPHIP 18826

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