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Публикации по объекту
Pulkovo compilation of radial velocities for 35495 stars in a common system.
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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.
| Faint background X-ray sources in the vicinity of the ring nebula NGC 6888
An analysis of the soft (0.1-4 keV) X-ray emission from the 1 x 1 degfield centered on the star HD 192163 in the nebula NGC 6888 revealed(besides the nebula) three faint unresolved sources. Two of them areassociated with the nearby G stars HD 192020 and HD 192182 with X-rayfluxes of (3-4) x 10 to the -13th and 1 x 10 to the 13th erg/sq cm s,respectively. A temperature of 0.17-0.35 keV is found for HD 192182.
| 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
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| La mesure des vitesses radiales au prisme objectif. XV. 7e liste de vitesses radiales déterminées au prisme obtif à vision directe
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| Structure de la galaxie dans la région de P Cygni
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| Objective-Prism Spectra of Long-Period Variables in the Near Infrared.
Abstract image available at:http://adsabs.harvard.edu/abs/1954ApJ...119..175N
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Наблюдательные данные и астрометрия
| Созвездие: | Лебедь |
| Прямое восхождение: | 20h11m46.39s |
| Склонение: | +38°40'58.1" |
| Видимая звёздная величина: | 8.28 |
| Расстояние: | 344.828 парсек |
| Собственное движение RA: | -2.5 |
| Собственное движение Dec: | -3.7 |
| B-T magnitude: | 8.269 |
| V-T magnitude: | 8.28 |
Каталоги и обозначения:
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