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HD 98437


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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.

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Observation and Astrometry data

Constellation:しし座
Right ascension:11h19m35.25s
Declination:+09°55'56.9"
Apparent magnitude:8.886
Distance:370.37 parsecs
Proper motion RA:-42.1
Proper motion Dec:1
B-T magnitude:9.237
V-T magnitude:8.915

Catalogs and designations:
Proper Names
HD 1989HD 98437
TYCHO-2 2000TYC 855-531-1
USNO-A2.0USNO-A2 0975-06699758
HIPHIP 55306

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