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HD 70531


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The calibration of the Stromgren photometric system for A, F and early G supergiants. I - The observational data
An empirical calibration of the Stromgren uvby-beta photometric systemfor the A, F, and early G supergiants is being derived. This paperexplains the observational program and the photometric reductiontechniques used and presents a catalog of new Stromgren photometry forover 600 A, F, and G supergiants.

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观测天体数据

星座:船尾座
右阿森松:08h20m50.33s
赤纬:-41°04'15.5"
视星:7.719
距离:108.578 天文距离
右阿森松适当运动:2.1
赤纬适当运动:-13
B-T magnitude:8.013
V-T magnitude:7.744

目录:
适当名称
HD 1989HD 70531
TYCHO-2 2000TYC 7665-983-1
USNO-A2.0USNO-A2 0450-06586539
HIPHIP 40906
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