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HD 83609


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Photometry of F-K type bright giants and supergiants. I - Intermediate band and H-Beta observations
Over 1500 observations of 560 bright giants and supergiants of types F-Kare presented and compared to the observations by Gray and Olsen (1991).The present results include intermediate-band which is slightlydifferent from the Stromgren data by Gray and Olsen due to a differentwidth for the v filter. A systematic difference in m(1) - M(1) withdecreasing temperature is noted in the two H-Beta data sets, and thecorrelations are defined.

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:Machine pneumatique
Right ascension:09h38m48.23s
Declination:-36°31'45.4"
Apparent magnitude:7.997
Distance:746.269 parsecs
Proper motion RA:-9.2
Proper motion Dec:3.1
B-T magnitude:9.057
V-T magnitude:8.085

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 83609
TYCHO-2 2000TYC 7179-2685-1
USNO-A2.0USNO-A2 0525-12033432
HIPHIP 47339
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