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Submit a new article| 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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 Observation and Astrometry data
| Constellation: | りゅうこつ座 |  | Right ascension: | 10h03m37.47s |  | Declination: | -64°46'10.9" |  | Apparent magnitude: | 9.433 |  | Proper motion RA: | -34.5 |  | Proper motion Dec: | 25.3 |  | B-T magnitude: | 9.898 |  | V-T magnitude: | 9.472 |  Catalogs and designations:
 
 
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