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A homogeneous catalog of new UBV and H-beta photometry of B- and A-type stars in and around the Scorpius-Centaurus OB association B- and A-type stars in and near the Sco-Cen OB association areinvestigated with UBV and H-beta photometry to acquire data relevant tothe luminosity function of Sco-Cen. The measurements generally consistof two 10-s integrations of U, B, V, (W, N) filters, and theobservations are corrected iteratively for atmospheric extinction andinstrumental response. The data presented give the mean V magnitude,mean B-V, mean U-B, and the estimated uncertainties for these values.The catalog provides a homogeneous catalog of data for a large fieldwith stellar objects delineating membership to the association Sco-Cenand that affect the luminosity function of the aggregate.
| 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.
| A survey of stars with composite spectra. Not Available
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Osservazione e dati astrometrici
Costellazione: | Centauro |
Ascensione retta: | 12h29m25.83s |
Declinazione: | -53°57'57.5" |
Magnitudine apparente: | 8.307 |
Distanza: | 1694.915 parsec |
Moto proprio RA: | -7.6 |
Moto proprio Dec: | -0.9 |
B-T magnitude: | 9.408 |
V-T magnitude: | 8.398 |
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