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HD 121209


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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:半人馬座
右阿森松:13h56m05.44s
赤纬:-63°53'29.9"
视星:7.229
距离:361.011 天文距离
右阿森松适当运动:-9.2
赤纬适当运动:-7.5
B-T magnitude:7.284
V-T magnitude:7.234

目录:
适当名称   (Edit)
HD 1989HD 121209
TYCHO-2 2000TYC 9012-653-1
USNO-A2.0USNO-A2 0225-18593049
HIPHIP 68056

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