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Enviar un nou article| Interstellar reddening in the Southern Hemisphere. I - The UVBY beta observations The uvby-beta photometric data obtained from a Southern Hemisphereobservational project is presented. A uvby-beta photometric network ofnearly 3900 A and early F stars has been established with the intentthat the stars serve as 'space probes' for measurements of interstellarreddening.
 
 
 |  | 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.
 
 
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| Constel·lació: | Libra |  | Ascensió Recta: | 15h09m01.78s |  | Declinació: | -21°43'31.4" |  | Magnitud Aparent: | 9.046 |  | Moviment propi RA: | -43.3 |  | Moviment propi Dec: | 7.4 |  | B-T magnitude: | 9.51 |  | V-T magnitude: | 9.085 |  Catàlegs i designacions:
 
 
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