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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.
| Photoelectric observations of lunar occultations. XII
Occultation observations of 414 events observed between 6 July 1979 and4 September 1980 with the 0.76-m telescope of McDonald Observatory arereported. Timings and data on double stars are given. Angular diameterinformation in six cases is included. The stars concerned with their runnumbers are: SAO 161754 (5270); 94027 (Alpha Tau) (5319, 5381, 5454);159370 (Gamma Lib) (5325, 5571); 162413 (43 Sgr) (5332); 97472 (3 Cnc)(5414); and 93955 (Theta Tau) (5445).
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Osservazione e dati astrometrici
| Costellazione: | Bilancia |
| Ascensione retta: | 15h41m40.36s |
| Declinazione: | -15°33'33.8" |
| Magnitudine apparente: | 8.844 |
| Distanza: | 294.985 parsec |
| Moto proprio RA: | -22.3 |
| Moto proprio Dec: | -15 |
| B-T magnitude: | 10.382 |
| V-T magnitude: | 8.971 |
Cataloghi e designazioni:
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