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黄巨星是明亮的巨星,质量低或中等(大约在0.5-11太阳质量),在其演化的后期阶段。它外部的大气是膨胀和稀薄的,增大的半径使表面温度低至5,200-7,500K。黄巨星呈现的颜色从白色到黄色,光谱类型为F和G。巨星中大约有10.6%是黄巨星

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