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HD 149580


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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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观测天体数据

星座:蛇夫座
右阿森松:16h36m35.03s
赤纬:-20°08'59.8"
视星:9.791
右阿森松适当运动:2.5
赤纬适当运动:-7.7
B-T magnitude:10.657
V-T magnitude:9.863

目录:
适当名称   (Edit)
HD 1989HD 149580
TYCHO-2 2000TYC 6224-366-1
USNO-A2.0USNO-A2 0675-16090386
HIPHIP 81325

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