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HD 117406


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Photometry and elements of the pre-contact system FO VIR
An analysis of the measures carried out at Merate Observatory has shownthat FO Vir is an eclipsing binary. It has been possible to determinethe geometric and photometric elements from the V light curve usingKopal's method. The comparison with the results of Mochnacki et al.(1986) is quite satisfactory and FO Vir is confirmed to be asemidetached system.

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Observation and Astrometry data

Constellation:Vierge
Right ascension:13h30m07.83s
Declination:+00°20'39.5"
Apparent magnitude:8.602
Distance:434.783 parsecs
Proper motion RA:5.5
Proper motion Dec:-4.5
B-T magnitude:9.93
V-T magnitude:8.712

Catalogs and designations:
Proper Names
HD 1989HD 117406
TYCHO-2 2000TYC 307-261-1
USNO-A2.0USNO-A2 0900-07405974
HIPHIP 65874

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