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HD 23357


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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:Eridanus
Right ascension:03h43m07.13s
Declination:-37°02'37.7"
Apparent magnitude:7.661
Distance:132.802 parsecs
Proper motion RA:-2.6
Proper motion Dec:-14
B-T magnitude:8.035
V-T magnitude:7.692

Catalogs and designations:
Proper Names
HD 1989HD 23357
TYCHO-2 2000TYC 7034-78-1
USNO-A2.0USNO-A2 0525-01287441
HIPHIP 17368
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