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Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.
| Accuracy of two-dimensional spectral classes derived through DDO photometry.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977AJ.....82..832Y&db_key=AST
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Osservazione e dati astrometrici
| Costellazione: | Lira |
| Ascensione retta: | 18h54m50.94s |
| Declinazione: | +30°01'58.1" |
| Magnitudine apparente: | 7.642 |
| Distanza: | 180.18 parsec |
| Moto proprio RA: | 18.8 |
| Moto proprio Dec: | 21.4 |
| B-T magnitude: | 8.722 |
| V-T magnitude: | 7.732 |
Cataloghi e designazioni:
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