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Absolute proper motions of open clusters. I. Observational data
Mean proper motions and parallaxes of 205 open clusters were determinedfrom their member stars found in the Hipparcos Catalogue. 360 clusterswere searched for possible members, excluding nearby clusters withdistances D < 200 pc. Members were selected using ground basedinformation (photometry, radial velocity, proper motion, distance fromthe cluster centre) and information provided by Hipparcos (propermotion, parallax). Altogether 630 certain and 100 possible members werefound. A comparison of the Hipparcos parallaxes with photometricdistances of open clusters shows good agreement. The Hipparcos dataconfirm or reject the membership of several Cepheids in the studiedclusters. Tables 1 and 2 are only available in electronic form at theCDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
| UBVRI photometry of FKSZ stars. III
UBVRI photometry in the Kron-Cousins system is presented for 118 starsin the Catalogue of Fundamental Faint Stars (Zverev, 1957) in thedeclination zone between -60 and -90 degrees. The observations were madebetween September, 1984 and March, 1987 at the European SouthernObservatory at La Silla, Chile. Tables of the photometric data aregiven, including star number, V magnitude, spectral types, and (B-V),(U-B), (V-R), and (R-I) color indices.
| Multicolour photometry of red giants in three southern open clusters
New UBV photometry of stars in the southern open clusters NGC 4349,5316, and 6494 is presently used to derive reddenings, distances, andabundances; the application of two criteria for photometric membershiphas led to the ability to discriminate between red field objects andphysical members of these clusters. No clear evidence of CNO enhancementis found in any of the clusters. The mass results obtained suggest thatthe cluster giants could have undergone mass loss during their red giantevolutionary phase.
| Dreifarben-Photometrie von NGC 5316
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Группы:
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Наблюдательные данные и астрометрия
| Созвездие: | Центавр |
| Прямое восхождение: | 13h53m26.32s |
| Склонение: | -61°37'45.5" |
| Видимая звёздная величина: | 7.892 |
| Расстояние: | 900.901 парсек |
| Собственное движение RA: | -23.7 |
| Собственное движение Dec: | -3.7 |
| B-T magnitude: | 9.822 |
| V-T magnitude: | 8.052 |
Каталоги и обозначения:
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