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・ OU Campus
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・ Ou Chanrith
・ OU Chant
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・ Ou Chin-der
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・ Ou Chuliang
・ Ou Chum (commune)
・ Ou Chum District
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OU Geminorum
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OU Geminorum : ウィキペディア英語版
OU Geminorum


OU Geminorum (OU Gem) is a visual binary or possible Triple star located in the constellation of Gemini.
The system has an absolute magnitude of 5.93, so at a distance of 48 light years it has an apparent magnitude of 6.77 when viewed from earth. It also has a total Proper Motion of 0.210"/yr and belongs to the Ursa Major stream.
The system is a much studied BY Draconis variable star with a period of 6.99 days〔http://www.ucm.es/info/Astrof/users/dmg/papers/pwIII/node10.html〕〔http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1980PASP...92..218B&db_key=AST&page_ind=0&data_type=GIF&type=SCREEN_VIEW&classic=YES〕 The primary star is a K3Vk class star.

The secondary star in the system has a surface temperature of and orbits the primary in about seven days.〔http://www.ari.uni-heidelberg.de/datenbanken/aricns/cnspages/4c00500.htm〕〔http://archive.is/20121209190058/http://cdsweb.cern.ch/record/411408/files/9912160.pdf〕
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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