Vega is about 25 light years away from Earth.

织女星距离地球约25光年。

Altair is located about 16.7 light-years away from Earth.

阿尔泰星距离地球约16.7光年。

Telescopes can magnify objects that are millions of light-years away.

望远镜可以放大数百万光年外的物体。

The star is so distant that it takes light years to reach us.

那颗星星如此遥远，光需要几年才能到达我们。

The furthest star we can see with the naked eye is many light-years away.

我们用肉眼能看到的最远的星星距离我们有很多光年。

Light-Years Ahead, Many Years Waiting.

数光年前面，等待很多年。

James Salter: Light Years (1975)

詹姆斯·索尔特：光年（1975）

They're millions of light years away.

它们距离我们数百万光年。

It's located about 220 light-years away.

它距离我们大约220光年远。

The Trifid Nebula is about 40 light-years across.

三叶星云的跨度约为40光年。