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Submit a new article| 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 Not Available
 
 
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 Observation and Astrometry data
| Constellation: | Orion |  | Right ascension: | 04h58m07.50s |  | Declination: | +00°51'57.0" |  | Apparent magnitude: | 8.262 |  | Distance: | 197.239 parsecs |  | Proper motion RA: | 0.3 |  | Proper motion Dec: | -7.9 |  | B-T magnitude: | 8.516 |  | V-T magnitude: | 8.283 |  Catalogs and designations:
 
 
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