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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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Osservazione e dati astrometrici
| Costellazione: | Balena |
| Ascensione retta: | 02h01m39.38s |
| Declinazione: | +01°20'35.4" |
| Magnitudine apparente: | 8.494 |
| Distanza: | 156.495 parsec |
| Moto proprio RA: | 51.3 |
| Moto proprio Dec: | -4.1 |
| B-T magnitude: | 9.014 |
| V-T magnitude: | 8.537 |
Cataloghi e designazioni:
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NEWS@SKY (Science&Space News)
