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Photometry of F-K type bright giants and supergiants. I - Intermediate band and H-Beta observations
Over 1500 observations of 560 bright giants and supergiants of types F-Kare presented and compared to the observations by Gray and Olsen (1991).The present results include intermediate-band which is slightlydifferent from the Stromgren data by Gray and Olsen due to a differentwidth for the v filter. A systematic difference in m(1) - M(1) withdecreasing temperature is noted in the two H-Beta data sets, and thecorrelations are defined.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Pergel |
| Sað Açýklýk: | 14h09m26.33s |
| Yükselim: | -64°46'34.1" |
| Görünürdeki Parlaklýk: | 8.546 |
| Uzaklýk: | 404.858 parsek |
| özdevim Sað Açýklýk: | -1 |
| özdevim Yükselim: | -0.9 |
| B-T magnitude: | 10.083 |
| V-T magnitude: | 8.673 |
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