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Photographic measurements of visual binaries The results of 164 photographic measurements of 50 large and, generally,neglected visual double stars are presented. The measurements have beenmade at Brera-Merate Observatory during the years 1984-88 with Zenastrograph.
 
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Observation and Astrometry data
| Constellation: | Dragon |  
    | Right ascension: | 17h10m17.29s |  
    | Declination: | +54°03'01.8" |  
    | Apparent magnitude: | 9.419 |  
    
    
    | Proper motion RA: | -5.6 |  
    | Proper motion Dec: | 13 |  
    | B-T magnitude: | 10.854 |  
    | V-T magnitude: | 9.538 |  
    
 
 
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