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HD 145573


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SANTIAGO 91, a right ascension catalogue of 3387 stars (equinox J2000).
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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
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Osservazione e dati astrometrici

Costellazione:Scorpione
Ascensione retta:16h12m50.60s
Declinazione:-28°07'55.2"
Magnitudine apparente:7.98
Distanza:93.023 parsec
Moto proprio RA:-5.6
Moto proprio Dec:14.1
B-T magnitude:8.505
V-T magnitude:8.024

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 145573
TYCHO-2 2000TYC 6805-31-1
USNO-A2.0USNO-A2 0600-19925113
HIPHIP 79451

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