It is the remnant of a supernova that was recorded by Chinese and Arab astronomers in 1054.

早在1054年，中国和阿拉伯天文学家就有关于它是超新星残余的记载。

youdao

Can you find, in the above image, a comet, a spiral galaxy, an open star cluster, and a supernova remnant?

在上面图中，你能找到：一彗星，一旋涡星系，一疏散星团和一超新星遗迹吗？

youdao

The nebula is a large supernova remnant, an expanding cloud born of the death explosion of a massive star.

该星云是超新星的遗迹，是一个大质量的恒星死亡爆炸时的扩散云气形成的。

youdao

When a star goes supernova, it leaves a remnant, like the one Tycho Brahe observed in 1572, or Johannes Kepler in 1604.

FORBES: When A Supernova ... Fizzles

Mandel's particular obsession is imaging: using long exposures to make pictures of celestial bodies--like his shot of the Veil Nebula supernova remnant, which cannot be seen merely by gazing through a telescope.

FORBES: A Star Is Born