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HD 103090


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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.

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Observation and Astrometry data

Constellation:Centaurus
Right ascension:11h52m09.01s
Declination:-53°46'18.2"
Apparent magnitude:9.495
Proper motion RA:-9.7
Proper motion Dec:5.1
B-T magnitude:9.598
V-T magnitude:9.504

Catalogs and designations:
Proper Names
HD 1989HD 103090
TYCHO-2 2000TYC 8631-375-1
USNO-A2.0USNO-A2 0300-14140909
HIPHIP 57867

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