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HD 31710


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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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Osservazione e dati astrometrici

Costellazione:Orione
Ascensione retta:04h58m07.50s
Declinazione:+00°51'57.0"
Magnitudine apparente:8.262
Distanza:197.239 parsec
Moto proprio RA:0.3
Moto proprio Dec:-7.9
B-T magnitude:8.516
V-T magnitude:8.283

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 31710
TYCHO-2 2000TYC 85-1386-1
USNO-A2.0USNO-A2 0900-01269685
HIPHIP 23086

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