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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.
| MK classifications of stars in Cygnus
MK spectral classifications are given for 24 stars of types B and A inselected area No. 4 of Fehrenbach and Burnage (1981) for radial-velocityinvestigations. The spectroscopic observations were made with the Marlyspectrograph at the 120-cm telescope of the Observatoire de HauteProvence. A spectral atlas of the standard stars is given, and the maincriteria for classification are described. Many of the target stars havebroad lines and one of them (HD 192605) is especially interesting,having a large Balmer progression of radial velocity.
| Distribution of OB stars and absorbing matter in the region around P CYG
The results of spectrophotometric observations of 277 OB stars in a 7 x7-deg region around P Cyg, obtained in 8-sec, 45-sec, and 8-minexposures on ORWO ZU-21 plates with a 4-deg 272-A/mm-dispersionobjective prism on the 40-in. Schmidt telescope at BiurakanAstrophysical Observatory on October 14-19, 1979, are presented intables and graphs and characterized. Data reported include 400-480-nmabsolute spectrophotometric gradients, color excesses, and distances. Itis found that concentrations of OB stars with associated absorbingmatter exist toward the associations Cyg OB9 (two concentrations at 800and 1800 pc), Cyg OB3 (three concentrations at 1.4, 2.5, and 3.7 kpc),OB1 (at 1.6 kpc), Cyg OB8 (at 1.5 kpc), and over the entire observedregion at a distance of about 500 pc.
| Spectrophotometric Temperatures, Absolute Magnitudes, and Intrinsic Color Indices of Wolf-Rayet Stars
Not Available
| Structure de la galaxie dans la région de P Cygni
Not Available
| Stars with large Proper Motions in the Hyderabab Astrographic zones + 36° to + 39° (Final list)
Not Available
| Stellar Spectra and Colors in a Clear Region in Cygnus.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1949ApJ...110..478N&db_key=AST
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Pozíciós és asztrometriai adatok
| Csillagkép: | Hattyú |
| Rektaszcenzió: | 20h10m01.65s |
| Deklináció: | +36°58'42.5" |
| Vizuális fényesség: | 7.767 |
| Távolság: | 335.57 parszek |
| RA sajátmozgás: | 14.1 |
| Dec sajátmozgás: | 5.3 |
| B-T magnitude: | 7.832 |
| V-T magnitude: | 7.773 |
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