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HD 188102


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관련 글

Mesures de vitesses radiales. VII. Accompagnement AU sol DU programme d'observation DU satellite Hipparcos. Radial velocities. VII. Ground based measurements for Hipparcos.
We publish 734 radial velocities of stars distributed in 28 fields of4x4deg. We continue the PPO series (Fehrenbach et al. 1987; Duflot etal. 1990 and 1992), using the Fehrenbach objective prism method.

Interstellar reddening in the direction of the globular cluster M71
Interstellar reddening as a function of distance in the direction of theglobular cluster M71 is determined by two-dimensional quantification of96 arcmin foreground stars observed in the Vilnius photometric system.In concentric areas with the radii 30 arcmin and 10 arcmin centered onthe cluster, the reddening shows the same variations, ranging fromE(B-V) = 0.12 to 0.32. The cluster stars are likely to have variableextinction too, at least in the outer regions of the cluster.

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관측 및 측정 데이터

별자리:화살자리
적경:19h52m54.12s
적위:+18°48'41.8"
가시등급:8.32
거리:251.889 파섹
적경상의 고유운동:-10.5
적위상의 고유운동:-25.5
B-T magnitude:9.848
V-T magnitude:8.447

천체목록:
일반명   (Edit)
HD 1989HD 188102
TYCHO-2 2000TYC 1624-3003-1
USNO-A2.0USNO-A2 1050-15402904
HIPHIP 97840
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