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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.
| UVBY observations of A, F, G and K field stars
Photoelectric data in the uvby system have been obtained for about 800southern stars of the Hipparcos Input Catalog (Grenon, 1982, 1985). Mostof the stars are F and G main sequence and fall in the magnitude range V= 8-11.
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Observation and Astrometry data
| Constellation: | Ophiucus |
| Right ascension: | 16h34m52.28s |
| Declination: | -18°18'14.2" |
| Apparent magnitude: | 8.827 |
| Distance: | 81.301 parsecs |
| Proper motion RA: | -24.8 |
| Proper motion Dec: | -55.4 |
| B-T magnitude: | 9.649 |
| V-T magnitude: | 8.895 |
Catalogs and designations:
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