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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.

Ultraviolet Observations with the Space Telescope Glazar
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UBV photometry of E region standard stars of intermediate brightness
Photometry data are given for 335 stars in the nine E regions.Observations were made using a photometer and filters on the 47 cmreflector at Cape Town. The stellar dispersions are summarized. Data arepresented in tabular form.

Photometric standard stars for the UBV and (RI)KC systems.
Not Available

Fainter Standards for VRI Photometry in the E Regions
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Dades d'Observació i Astrometria

Constel·lació:Lupus
Ascensió Recta:14h53m56.70s
Declinació:-46°15'29.5"
Magnitud Aparent:8.672
Distancia:207.469 parsecs
Moviment propi RA:-11.7
Moviment propi Dec:-8.5
B-T magnitude:8.662
V-T magnitude:8.672

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 131243
TYCHO-2 2000TYC 8280-1218-1
USNO-A2.0USNO-A2 0375-22679070
HIPHIP 72899
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