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Submit a new article| Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS Radial velocities have been determined for a sample of 2930 B2-F5 stars,95% observed by the Hipparcos satellite in the north hemisphere and 80%without reliable radial velocity up to now. Observations were obtainedat the Observatoire de Haute Provence with a dispersion of 80Ä,mm(-1) with the aim of studying stellar and galactic dynamics.Radial velocities have been measured by correlation with templates ofthe same spectral class. The mean obtained precision is 3.0 km s(-1)with three observations. A new MK spectral classification is estimatedfor all stars. Based on observations made at the Haute ProvenceObservatory, France and on data from The Hipparcos Catalogue, ESA.Tables 4, 5 and 6 are only available in electronic form at the CDS viaanonymous ftp to cdsarc.u-strasbg.fr or viahttp://cdsweb.u-strasbg.fr/Abstract.htm
 
 
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| Constellation: | はくちょう座 |  | Right ascension: | 20h48m47.84s |  | Declination: | +48°13'59.6" |  | Apparent magnitude: | 7.863 |  | Distance: | 200.401 parsecs |  | Proper motion RA: | -1.7 |  | Proper motion Dec: | -16.5 |  | B-T magnitude: | 7.987 |  | V-T magnitude: | 7.874 |  Catalogs and designations:
 
 
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