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UBVRI photometry of FKSZ stars. IV
The paper presents UBVRI photometry, in the Kron-Cousins system, for 117stars of the Catalog of Fundamental Faint Stars in the declination zone+18-0 deg. The observations were performed from July 1988 to March 1990with the ESO 0.50-m telescope at the ESO in La Silla, Chile. The resultsof 24 nights of observations are reported.
| The proper motions of Struve double stars
The proper motions of the components of 103 Struve double stars fromMuller's list of neglected stars and of 15 other systems were measuredrelative to sets of reference stars, for the primary purpose ofdistinguishing physical from optical pairs. A by-product of thisinvestigation is a list of measured position angles and distances ofthese objects, at two epochs each.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Avci |
| Sað Açýklýk: | 05h54m35.83s |
| Yükselim: | +05°21'13.2" |
| Görünürdeki Parlaklýk: | 8.265 |
| Uzaklýk: | 139.86 parsek |
| özdevim Sað Açýklýk: | -9.9 |
| özdevim Yükselim: | -15.2 |
| B-T magnitude: | 9.33 |
| V-T magnitude: | 8.353 |
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