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HD 185697


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Color excesses of classical cepheids. I
The color excesses of eleven cepheids have been determined with the aidof photometry of field stars found in the proximity of the variables. Acomparison of the color excesses with previous color-excess results isgiven. Four cepheids: RT Aur, DT Cyg, Zeta Gem, and T Vul, haverelatively small and well-established reddening values. These fourstars, along with Alpha UMi, can serve as standards to calibratereddening-free indices with intrinsic color indices such as (b-y) or(B-V).

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观测天体数据

星座:狐狸座
右阿森松:19h39m37.47s
赤纬:+20°46'58.4"
视星:8.229
距离:381.679 天文距离
右阿森松适当运动:-0.4
赤纬适当运动:-6.1
B-T magnitude:8.377
V-T magnitude:8.242

目录:
适当名称   (Edit)
HD 1989HD 185697
TYCHO-2 2000TYC 1614-1364-1
USNO-A2.0USNO-A2 1050-14345909
HIPHIP 96712

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