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Fifth fundamental catalogue. Part 2: The FK5 extension - new fundamental stars
The mean positions and proper motions for 3117 new fundamental starsessentially in the magnitude range about 4.5 to 9.5 are given in thisFK5 extension. Mean apparent visual magnitude is 7.2 and is on average2.5 magnitudes fainter then the basic FK5 which has a mean magnitude of4.7. (The basic FK5 gives the mean positions and proper motions for theclassical 1535 fundamental stars). The following are discussed: theobservational material, reduction of observations, star selection, andthe system for the FK5 extension. An explanation and description of thecatalog are given. The catalog of 3117 fundamental stars for the equinoxand epoch J2000.0 and B1950.0 is presented. The parallaxes and radialvelocities for 22 extension stars with large forecasting effects aregiven. Catalogs used in the compilation of the FK5 fundamental catalogare listed.
| 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.
| Sir John Herschel's Observations of Stars in the Small Magellanic Cloud
Not Available
| UBV Photometry of bright stars in 47 Tuc.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977A&AS...27..381L&db_key=AST
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Группы:
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Наблюдательные данные и астрометрия
| Созвездие: | Тукан |
| Прямое восхождение: | 00h20m43.55s |
| Склонение: | -71°58'40.8" |
| Видимая звёздная величина: | 8.315 |
| Расстояние: | 305.81 парсек |
| Собственное движение RA: | 47.1 |
| Собственное движение Dec: | 12.3 |
| B-T magnitude: | 9.774 |
| V-T magnitude: | 8.436 |
Каталоги и обозначения:
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