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Search for light variability among eight stars with anomalous helium content
A search for periodic light variability was carried out among eightstars with anomalous helium content. No variability was detected duringthe observation period for HD 178993, HD 207538, and HD 209339. Theperiod obtained for HD 184927 by Bond and Levato (1977) was confirmed.For HD 191980, HD 208266, and HD 217833, photometric variability wasdetected and periods were obtained.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Okcuk |
| Sað Açýklýk: | 19h10m16.87s |
| Yükselim: | +16°55'07.9" |
| Görünürdeki Parlaklýk: | 8.965 |
| özdevim Sað Açýklýk: | 3.3 |
| özdevim Yükselim: | -7.3 |
| B-T magnitude: | 9.24 |
| V-T magnitude: | 8.988 |
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