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HD 89203


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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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Сазвежђа:Прамац
Ректацензија:10h15m31.76s
Deклинација:-62°32'13.2"
Apparent магнитуда:7.022
Даљина:363.636 parsecs
Proper motion RA:-5.3
Proper motion Dec:4.4
B-T magnitude:6.991
V-T magnitude:7.02

Каталог и designations:
Proper имена   (Edit)
HD 1989HD 89203
TYCHO-2 2000TYC 8947-944-1
USNO-A2.0USNO-A2 0225-07939067
HIPHIP 50242

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