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HD 179989


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Photometry of Stars in the Field of the Mira XY Aquilae
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Observational studies of Cepheids. II - BVRI photometry of 112 Cepheids
Over 4000 differentially determined photoelectric BVRI observations andthe resulting light curves are presented for 112 Cepheids accessiblefrom Northern Hemisphere observatories. The internal precision of thesedata is better than + or - 0.01 mag, and the accuracy of transformationto the Johnson BVRI system is nearly as good.

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观测天体数据

星座:天鷹座
右阿森松:19h14m38.99s
赤纬:+04°15'21.5"
视星:8.913
距离:347.222 天文距离
右阿森松适当运动:2.2
赤纬适当运动:-11.8
B-T magnitude:10.514
V-T magnitude:9.046

目录:
适当名称
HD 1989HD 179989
TYCHO-2 2000TYC 471-1479-1
USNO-A2.0USNO-A2 0900-14310367
HIPHIP 94555
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