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Five-colour photometry of OB-stars in the Southern Hemisphere Observations of OB-stars, made in 1959 and 1960 at the Leiden SouthernStation near Hartebeespoortdam, South Africa, with the VBLUW photometerattached to the 90 cm light-collector, are given in this paper. They arecompared with photometry obtained by \cite[Graham (1968),]{gra68}\cite[Walraven & Walraven (1977),]{wal77} \cite[Lub & Pel(1977)]{lub77} and \cite[Van Genderen et al. (1984).]{gen84} Formulaefor the transformation of the present observations to those of\cite[Walraven & Walraven (1977)]{wal77} and \cite[Lub & Pel(1977)]{lub77} are given. Table 4 is only available in electronic format the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) orvia http://cdsweb.u-strasbg.fr/Abstract.html
 
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Observation and Astrometry data
| Constellation: | Cassiopeia |  
    | Right ascension: | 00h49m55.70s |  
    | Declination: | +71°10'32.8" |  
    | Apparent magnitude: | 7.549 |  
    
        | Distance: | 406.504 parsecs |  
        
    
    | Proper motion RA: | -6.7 |  
    | Proper motion Dec: | -1.7 |  
    | B-T magnitude: | 7.608 |  
    | V-T magnitude: | 7.554 |  
    
 
 
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