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HD 40869


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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:Pictor
Right ascension:05h58m41.14s
Declination:-52°47'32.5"
Apparent magnitude:7.966
Distance:181.488 parsecs
Proper motion RA:2.7
Proper motion Dec:-6.6
B-T magnitude:8.304
V-T magnitude:7.994

Catalogs and designations:
Proper Names
HD 1989HD 40869
TYCHO-2 2000TYC 8520-231-1
USNO-A2.0USNO-A2 0300-01974385
HIPHIP 28292
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