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・ Tau, Norway
・ Tau-gu
・ Tau-leaping
・ Tau-protein kinase
・ Tau-Titi
・ Tau1 Aquarii
・ Tau1 Arietis
・ Tau1 Capricorni
・ Tau1 Eridani
・ Tau1 Gruis
・ Tau1 Gruis b
・ Tau1 Lupi
・ Tau1 Serpentis
・ Tau2 Aquarii
・ Tau2 Arietis
Tau2 Capricorni
・ Tau2 Eridani
・ Tau2 Lupi
・ Tau2 Serpentis
・ Tau3 Eridani
・ Tau3 Gruis
・ Tau3 Serpentis
・ Tau4 Eridani
・ Tau4 Serpentis
・ Tau5 Eridani
・ Tau5 Serpentis
・ Tau6 Eridani
・ Tau6 Serpentis
・ Tau7 Eridani
・ Tau7 Serpentis


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Tau2 Capricorni : ウィキペディア英語版
Tau2 Capricorni

:''For other star systems with this Bayer designation, see Tau Capricorni.''
Tau2 Capricorni (τ2 Cap, τ2 Capricorni) is a multiple star system in the constellation Capricornus. It is approximately 1750 light years from Earth. The system has a combined apparent magnitude of +5.24. Because it is near the ecliptic, τ2 Capricorni can be occulted by the Moon, and also (rarely) by planets.
The primary component, τ2 Capricorni A, is a blue-white B-type giant with an apparent magnitude of +5.8. At a distance of only 0.34 arcseconds is the second component, τ2 Capricorni B, a blue-white B-type subgiant with an apparent magnitude of +6.3. These two stars orbit around their common centre of mass once every 200 years. A possible third component with an apparent magnitude of +9.3, detected by studying the star during occultation, is located 0.052 arcseconds away from the A component.



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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