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HD 161271


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The nature of visual components in 82 multiple systems.
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The radial velocities of triple-star components
The paper presents 60 radial velocity measurements for 38 components of22 triple stars. Information is provided on the radial velocities of thetriple-star systems ADS 48,9716,9909 + + 9910, 10058, 11853 and of atriple star with alpha (1950) = 18 h 45 min, and delta (1950) = + 28 deg22 arcmin.

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Observation and Astrometry data

Constellation:Ophiuchus
Right ascension:17h44m41.81s
Declination:-01°44'24.6"
Apparent magnitude:8.073
Distance:373.134 parsecs
Proper motion RA:14.5
Proper motion Dec:-4.9
B-T magnitude:9.521
V-T magnitude:8.193

Catalogs and designations:
Proper Names
HD 1989HD 161271
TYCHO-2 2000TYC 5081-1887-1
USNO-A2.0USNO-A2 0825-11102924
HIPHIP 86845
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