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UBV photometry of stars whose positions are accurately known.
Photometric indices V, B-V, and U-B were measured for about 560 stars ofthe AGK3R and NPZT catalogs between BD declinations 11 deg and 23 deg,using the 40-cm Cassegrain telescope of the Kvistaberg Observatory fromApril 1986 to May 1987. The observation procedure and the reductiontechnique were the same as in the earlier papers of this series by Oja(1984, 1985, 1986, and 1987). The mean errors were calculated from theinternal consistency of the data. The accuracy was found to be the sameas for the earlier parts of the survey.
| Photoelectric measurements of lunar occultations. VIII
Photoelectric timings are reported for 276 lunar occultation eventswhich were observed between March 1975 and February 1976. The timings(in UTC) are based on Loran G equipment of a lunar laser-ranging groupor on WWV signals. Angular diameters are determined for HR 5301, HD176124, Chi-1-Orionis, and HR 601. Twenty cases of possible or actualdouble stars, including Beta Capricorni, are noted along with oneprobable triple system (51 Piscium). Several technical and computationaldifficulties encountered in this program are discussed.
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Группы:
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Наблюдательные данные и астрометрия
| Созвездие: | Овен |
| Прямое восхождение: | 02h51m52.37s |
| Склонение: | +16°29'51.8" |
| Видимая звёздная величина: | 8.151 |
| Расстояние: | 224.215 парсек |
| Собственное движение RA: | -5.6 |
| Собственное движение Dec: | -13.4 |
| B-T magnitude: | 10.274 |
| V-T magnitude: | 8.327 |
Каталоги и обозначения:
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