Every 27 years, a bright star called Epsilon Aurigae fades over period of two years, then brightens.
每隔27年，一个被称为牧夫座ep silon的明亮恒星都会进入为期2年的暗淡时期，然后再度变亮。
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The bright star AE Aurigae, visible near the nebula center, is so hot it is blue, emitting light so energetic it knocks electrons away from surrounding gas.
御夫座AE星非常地炽热，因此所发出的蓝色星光，能把周围物质的电子撞飞出去。
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Scientists taking close-up photographs of the Epsilon Aurigae during its eclipse, which happens every 27 years, noticed the strange dark object's shadow on the star.