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HD 165794


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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.

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Observation and Astrometry data

Constellation:Corona Australis
Right ascension:18h09m34.92s
Declination:-38°47'52.7"
Apparent magnitude:8.051
Distance:212.314 parsecs
Proper motion RA:-1.5
Proper motion Dec:-15.9
B-T magnitude:8.322
V-T magnitude:8.074

Catalogs and designations:
Proper Names
HD 1989HD 165794
TYCHO-2 2000TYC 7899-252-1
USNO-A2.0USNO-A2 0450-32984813
HIPHIP 88966
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