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HD 81293


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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:Τρόπις
Right ascension:09h22m20.92s
Declination:-58°44'05.2"
Apparent magnitude:8.275
Distance:555.556 parsecs
Proper motion RA:-6.4
Proper motion Dec:3
B-T magnitude:8.238
V-T magnitude:8.272

Catalogs and designations:
Proper Names
HD 1989HD 81293
TYCHO-2 2000TYC 8596-295-1
USNO-A2.0USNO-A2 0300-06734014
HIPHIP 45956
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