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HD 131243


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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
Not Available

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
Not Available

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Osservazione e dati astrometrici

Costellazione:Lupo
Ascensione retta:14h53m56.70s
Declinazione:-46°15'29.5"
Magnitudine apparente:8.672
Distanza:207.469 parsec
Moto proprio RA:-11.7
Moto proprio Dec:-8.5
B-T magnitude:8.662
V-T magnitude:8.672

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 131243
TYCHO-2 2000TYC 8280-1218-1
USNO-A2.0USNO-A2 0375-22679070
HIPHIP 72899
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