一场迅速得令人目瞪口呆的爆发，将它从一颗以7年为周期、安闲自在绕太阳旋转的暗淡彗星，变成了一颗肉眼可见、足以与英仙座最亮的恒星相媲美的彗星。

A stunningly rapid outburst transformed it from a faint comet quietly orbiting the Sun with a period of about 7 years to a naked-eye comet rivaling the brighter stars in the constellation Perseus.