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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
| On the reality of the stellar ring in Aql.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971A&A....13...71P&db_key=AST
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Observation and Astrometry data
| Constellation: | Αετός |
| Right ascension: | 20h06m39.79s |
| Declination: | +12°13'50.8" |
| Apparent magnitude: | 8.223 |
| Distance: | 591.716 parsecs |
| Proper motion RA: | 6.7 |
| Proper motion Dec: | -3.1 |
| B-T magnitude: | 8.326 |
| V-T magnitude: | 8.232 |
Catalogs and designations:
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