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HD 50715


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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.

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Observation and Astrometry data

Constellation:Carina
Right ascension:06h50m59.37s
Declination:-56°14'23.7"
Apparent magnitude:8.68
Distance:100.1 parsecs
Proper motion RA:-29
Proper motion Dec:45
B-T magnitude:9.353
V-T magnitude:8.736

Catalogs and designations:
Proper Names
HD 1989HD 50715
TYCHO-2 2000TYC 8540-924-1
USNO-A2.0USNO-A2 0300-02471044
HIPHIP 32871

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