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Interstellar reddening in the Southern Hemisphere. I - The UVBY beta observations
The uvby-beta photometric data obtained from a Southern Hemisphereobservational project is presented. A uvby-beta photometric network ofnearly 3900 A and early F stars has been established with the intentthat the stars serve as 'space probes' for measurements of interstellarreddening.
| 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.
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Посматрања и Астрометриски подаци
| Сазвежђа: | Орион |
| Ректацензија: | 05h49m00.23s |
| Deклинација: | -03°18'41.0" |
| Apparent магнитуда: | 9.881 |
| Proper motion RA: | 9.4 |
| Proper motion Dec: | -37.5 |
| B-T magnitude: | 10.2 |
| V-T magnitude: | 9.908 |
Каталог и designations:
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