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The improvement of the star positions of the Potsdam PZT catalog
Regular determinations of the right ascension and declination of starswith the aid of a photographic zenith tube (PZT) were begun in ageodetic-astronomical observatory of the German Democratic Republic in1972. Results obtained during the years 1972 and 1973 were used for afirst improvement of stellar positions listed in the Third Catalog(Katalog) of the 'Astronomische Gesellschaft' (Astronomical Society)AGK3. The corrections resulted in a distinct improvement of the accuracyof the positional values. However, the possibility could not be excludedthat the results were still affected by remaining errors with systematiccharacteristics. In order to eliminate the considered deficiencies, newstellar coordinate corrections were computed on the basis of aconsiderably larger data set. The new catalog containing the reviseddata has been called PZT 80, while the data obtained on the basis of thefirst observations are listed in PZT 74. The new catalog is presented inthe appendix.
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Группы:
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Наблюдательные данные и астрометрия
| Созвездие: | Возничий |
| Прямое восхождение: | 05h22m00.00s |
| Склонение: | +52°12'43.3" |
| Видимая звёздная величина: | 8.412 |
| Расстояние: | 588.235 парсек |
| Собственное движение RA: | -10 |
| Собственное движение Dec: | -32.9 |
| B-T magnitude: | 8.818 |
| V-T magnitude: | 8.446 |
Каталоги и обозначения:
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