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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.
| Intensive photometry of southern Wolf-Rayet stars
Results of an intensive photometric campaign on 17 of the brightestsouthern Wolf-Rayet stars are presented. The detection ofmultiperiodicity in two stars, HD 50896 and HD 96548, is reported. It islikely that these periodicities are not coherent but are manifestationsof the quasi-periodic variations seen in a few WR stars. A good exampleof these variations is given by HD 86161. A new eclipsing binary, HD92740, has been discovered; other stars show periodic variations whichcan be explained by phase-dependent scattering of the secondary light asit traverses the Wolf-Rayet wind. An important conclusion of this studyis that not a single example was found of short-period variations whichcan be attributed to pulsation.
| Photometry of southern Wolf-rayet stars.
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Observation and Astrometry data
| Constellation: | Τρόπις |
| Right ascension: | 10h15m31.76s |
| Declination: | -62°32'13.2" |
| Apparent magnitude: | 7.022 |
| Distance: | 363.636 parsecs |
| Proper motion RA: | -5.3 |
| Proper motion Dec: | 4.4 |
| B-T magnitude: | 6.991 |
| V-T magnitude: | 7.02 |
Catalogs and designations:
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