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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.
| The calibration of the Stromgren photometric system for A, F and early G supergiants. I - The observational data
An empirical calibration of the Stromgren uvby-beta photometric systemfor the A, F, and early G supergiants is being derived. This paperexplains the observational program and the photometric reductiontechniques used and presents a catalog of new Stromgren photometry forover 600 A, F, and G supergiants.
| Walraven photometry of nearby southern OB associations
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Miembro de los siguientes grupos:
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Datos observacionales y astrométricos
| Constelación: | Ofiuco |
| Ascensión Recta: | 17h01m12.60s |
| Declinación: | -29°41'03.7" |
| Magnitud Aparente: | 8.045 |
| Distancia: | 10000000 parsecs |
| Movimiento Propio en Ascensión Recta: | -1.7 |
| Movimiento Propio en Declinación: | -3.4 |
| B-T magnitude: | 9.47 |
| V-T magnitude: | 8.163 |
Catálogos y designaciones:
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INHABITED SKY
