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HD 130922


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A photometric study of wide visual double stars. III - Wide visual double stars with F-type primaries
Fifty-one wide visual double stars with F-type primaries have beenobserved in the uvby, H-beta system. MK class, color excess, absolutemagnitude, effective temperature and distance have been derived fromcalibrations of the above systems. From the distances derived here andthe astrometric data, taken from the literature, it appears that atleast 75 percent of them can be 'physical pairs'. Nevertheless, about 33percent of the double stars in this sample seem to have a realseparation of their components larger than 0.01 parsecs. That means thatthese stars are not gravitationally bound, but they have a commonorigin. For this season, the values of their astrophysical parametersare usually very close together.

Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

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Observation and Astrometry data

Constellation:Centaurus
Right ascension:14h51m40.29s
Declination:-30°52'41.8"
Apparent magnitude:8.229
Distance:121.065 parsecs
Proper motion RA:-59.6
Proper motion Dec:-70.8
B-T magnitude:8.761
V-T magnitude:8.273

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 130922
TYCHO-2 2000TYC 7298-488-1
USNO-A2.0USNO-A2 0525-18221419
HIPHIP 72684

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