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HD 96268


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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.

Estimation of spectral classifications for bright southern stars with interesting Stromgren indices
This paper investigates the degree of success with which uvby photometrycan be applied to predict spectral classifications for 947 A, F, and Gstars brighter than an apparent magnitude of 8.3 and with four-colorindices indicating some kind of interesting, unusual, or peculiarspectrum. One or several possible spectral classifications are estimatedfor each star from photometry alone, double stars are distinguished, andthe estimates are compared with published classifications. The resultsshow that the framework provided by uvby photometry can be extended toinclude most G and K stars, reddened stars, peculiar stars, and certaintypes of double star.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Karina
Sað Açýklýk:11h04m21.39s
Yükselim:-69°55'44.3"
Görünürdeki Parlaklýk:7.959
Uzaklýk:152.207 parsek
özdevim Sað Açýklýk:-74.6
özdevim Yükselim:17.8
B-T magnitude:8.35
V-T magnitude:7.992

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 96268
TYCHO-2 2000TYC 9216-2189-1
USNO-A2.0USNO-A2 0150-08012594
HIPHIP 54115

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