At the time, the expanding cloud was likely as bright as a crescent Moon toward the constellation of Cygnus, visible for weeks to people living at the dawn of recorded history.

• 那个时候，这团位于天鹅座、向外扩张的云气很可能和月牙一样亮，对于那时生活在刚刚有历史记录时期的人们来说，可以连续数周看到它。