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Geneva intrinsic colours of the supergiants of spectral types A and F The aim of this research note is to expose a photometric method todetermine the intrinsic values of the Geneva color index (B2-V1) for thesupergiants of spectral types A and F. The different stages which led tothis objective are presented, and the method is tested with a few starsbelonging to clusters for which color excesses were found in theliterature. A list of stars classified as supergiants which behavephotometrically as dwarfs is indicated.
| Vitesse radiales dans 5 Selected Areas. Not Available
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Посматрања и Астрометриски подаци
Сазвежђа: | Кит |
Ректацензија: | 02h52m00.45s |
Deклинација: | +01°17'26.7" |
Apparent магнитуда: | 9.171 |
Proper motion RA: | 22.9 |
Proper motion Dec: | 5.7 |
B-T magnitude: | 9.622 |
V-T magnitude: | 9.209 |
Каталог и designations:
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