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HD 202970


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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.

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Observation and Astrometry data

Constellation:Cygne
Right ascension:21h17m14.84s
Declination:+55°03'31.6"
Apparent magnitude:7.906
Distance:223.214 parsecs
Proper motion RA:12.5
Proper motion Dec:9.5
B-T magnitude:8.069
V-T magnitude:7.92

Catalogs and designations:
Proper Names
HD 1989HD 202970
TYCHO-2 2000TYC 3957-716-1
USNO-A2.0USNO-A2 1425-11702438
HIPHIP 105081
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