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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
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Observation and Astrometry data
| Constellation: | Ophiucus |
| Right ascension: | 17h45m00.43s |
| Declination: | +13°01'29.2" |
| Apparent magnitude: | 7.611 |
| Distance: | 78.616 parsecs |
| Proper motion RA: | -3.4 |
| Proper motion Dec: | 23.1 |
| B-T magnitude: | 8.478 |
| V-T magnitude: | 7.683 |
Catalogs and designations:
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