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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. XIV
Observations of 314 events between March 1982 and March 1983 arepresented in the same form as in previous papers in this series. Theresults include 18 cases of duplicity of which 12 appear to be newdiscoveries. Unluckily, few cases of possible large angular diametersoccurred, and in no case can the results derived be accepted withoutreserve, these having been observed at very low altitudes withconsequent severe corruption by seeing effects. A remark on theincidence of doubles in the Hyades and its possible consequences forestimates of stellar distances is appended.
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Ofiuco |
| Ascensione retta: | 16h42m24.60s |
| Declinazione: | -20°09'52.7" |
| Magnitudine apparente: | 8.487 |
| Distanza: | 137.741 parsec |
| Moto proprio RA: | 10.4 |
| Moto proprio Dec: | -35.1 |
| B-T magnitude: | 9.071 |
| V-T magnitude: | 8.536 |
Cataloghi e designazioni:
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