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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.
| Radial velocities in three fields along the southern galactic equator
A list of radial velocities for 764 stars is given for three fields inthe Vela-Carina region of the galaxy. They were obtained from GPO-platestaken at La Silla and reduced following Fehrenbach's method.Slit-spectra were collected with the 152 cm-spectrographic telescope atLa Silla, to derive an accurate radial velocity for a sufficient numberof calibration stars: out of the 29 stars, 26 had no formerly publishedvalue. The global motions of 10 to 14 km/s can be considered as normalon the basis of galactic rotation. Some stars, however, show highvelocities, and are therefore marked with one or two asterisks in thetable.
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Observation and Astrometry data
| Constellation: | ほ座 |
| Right ascension: | 09h49m41.54s |
| Declination: | -54°03'42.7" |
| Apparent magnitude: | 8.489 |
| Distance: | 153.139 parsecs |
| Proper motion RA: | -51.6 |
| Proper motion Dec: | 30.9 |
| B-T magnitude: | 8.844 |
| V-T magnitude: | 8.519 |
Catalogs and designations:
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