后来，科学史上最耐心的观察者之一，德国化学家 Charles Schwabe 发现了太阳黑子活动。
Later this discovery of the sunspot activity was made by one of the most patient observers in the history of science, a German chemist, Charles Schwabe.
科学家今天宣布，当我们的恒星脱离最近的太阳黑子活动周期时，太阳最有可能进入冬眠。
When our star drops out of its latest sunspot activity cycle, the sun is most likely going into hibernation, scientists announced today.
自1778年以来太阳黑子活动最活跃的一年。
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