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HD 116510


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VRI photometry of wide double stars with A- type primaries.
We are presenting VRI photometry of 93 wide visual double stars havinglate B- or A- type primaries, taken from the Annex of Double andMultiple Stars of the HIPPARCOS Input Catalogue. Spectral types havebeen estimated for most of the primaries and for the majority of thesecondaries. 40% of them probably have common origin components, forwhich we calculated photometric parallaxes and some orbital valuesestimates.

CCD measurements of visual binaries
CCD measurements of visual double stars were obtained with the ESO 1.5 mdanish reflector. All binaries observed are candidates for the HIPPARCOSInput Catalogue. More than 400 observations have been made in four clearnights. The accuracy obtained is comparable to the accuracy of thephotographic technique, but the observing and reduction times are oneorder of magnitude smaller.

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Observation and Astrometry data

Constellation:Μυία
Right ascension:13h26m46.39s
Declination:-74°11'19.8"
Apparent magnitude:8.414
Distance:295.858 parsecs
Proper motion RA:-9.3
Proper motion Dec:-4.7
B-T magnitude:8.424
V-T magnitude:8.415

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 116510
TYCHO-2 2000TYC 9254-2969-1
USNO-A2.0USNO-A2 0150-11707472
HIPHIP 65585

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