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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.
| Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.
| Lichtelektrische UBV-Photometrie von Standardsternen und in vier Sternfeldern am Äquator
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Avci |
| Sað Açýklýk: | 04h58m07.50s |
| Yükselim: | +00°51'57.0" |
| Görünürdeki Parlaklýk: | 8.262 |
| Uzaklýk: | 197.239 parsek |
| özdevim Sað Açýklýk: | 0.3 |
| özdevim Yükselim: | -7.9 |
| B-T magnitude: | 8.516 |
| V-T magnitude: | 8.283 |
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