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Stroemgren photometry of F- and G-type stars brighter than V = 9.6. I. UVBY photometry
Within the framework of a large photometric observing program, designedto investigate the Galaxy's structure and evolution, Hβ photometryis being made for about 9000 stars. As a by-product, supplementary uvbyphotometry has been made. The results are presented in a cataloguecontaining 6924 uvby observations of 6190 stars, all south ofδ=+38deg. The overall internal rms errors of one observation(transformed to the standard system) of a program star in the interval6.5
| Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.
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| Сазвежђа: | Јужна круна |
| Ректацензија: | 19h02m34.58s |
| Deклинација: | -38°00'08.2" |
| Apparent магнитуда: | 9.076 |
| Proper motion RA: | -3.2 |
| Proper motion Dec: | -111.8 |
| B-T magnitude: | 9.964 |
| V-T magnitude: | 9.15 |
Каталог и designations:
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