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HD 255342


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UBV polarimetry of 361 A- and F-type stars in selected areas
We present simultaneous UBV linear polarization measurements for 361 A-and F-type stars with accurate colour excess and distance determination.These stars are distributed in 35 Kapteyn's Selected Areas, covering thethird and fourth quadrants of the galactic plane (|b| <= 30degr ).The obtained polarization and the known colour excess are compared. Ananalysis of the polarization distribution as a function of the stellardistance is also performed. Based on observations collected at theEuropean Southern Observatory (ESO), La Silla, Chile.

Stellar Spectra in Milky way Regions. VIII. a Region in Orion.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4...23M&db_key=AST

Etude photométrique de quelques séquences stellaires par la méthode de Fabry
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Etudes photométriques par la méthode de Fabry
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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Avci
Sað Açýklýk:06h20m11.32s
Yükselim:+14°48'11.2"
Görünürdeki Parlaklýk:9.161
özdevim Sað Açýklýk:-12.5
özdevim Yükselim:-13.7
B-T magnitude:9.541
V-T magnitude:9.193

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 255342
TYCHO-2 2000TYC 743-76-1
USNO-A2.0USNO-A2 0975-02986747
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