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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.

Photometry of F-K type bright giant and supergiants. II - Calibration on indices in terms of luminosity reddening and abundance of F-type stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1991AJ....102.1826E&db_key=AST

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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Dades d'Observació i Astrometria

Constel·lació:Vela
Ascensió Recta:09h43m33.95s
Declinació:-51°31'39.9"
Magnitud Aparent:8.594
Distancia:510.204 parsecs
Moviment propi RA:-5.4
Moviment propi Dec:3
B-T magnitude:9.628
V-T magnitude:8.68

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 84414
TYCHO-2 2000TYC 8180-2593-1
USNO-A2.0USNO-A2 0375-08736390
HIPHIP 47703
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