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HD 187427


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Radial velocity measurements. II - Ground-based observations of the program stars for the HIPPARCOS satellite
New radial velocities for 446 stars of magnitude 9.0 or brighter in 1616-sq-deg fields of the Northern Hemisphere are determined by automaticPDS measurement of 80-A/mm-dispersion spectra obtained at theObservatoire de Haute Provence using a 17-cm-diameter objective prism.The fields were selected to provide data for the input catalog of theESA Hipparcos astrometric satellite. The measurement techniques andprecision are discussed, and the results are presented in extensivetables and graphs.

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Observation and Astrometry data

Constellation:Cygnus
Right ascension:19h48m40.66s
Declination:+30°49'42.5"
Apparent magnitude:7.681
Distance:87.184 parsecs
Proper motion RA:4.8
Proper motion Dec:-76.1
B-T magnitude:8.679
V-T magnitude:7.764

Catalogs and designations:
Proper Names
HD 1989HD 187427
TYCHO-2 2000TYC 2669-2972-1
USNO-A2.0USNO-A2 1200-13314232
HIPHIP 97470

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