Red dwarfs are also known as M dwarfs.

红也被称为M型。

And in the center is a white dwarf.

中间是一颗白。

The universe becomes dimmer and dimmer, illuminated only by smaller red and white dwarfs.

宇宙会变得越来越暗淡，仅由较红和白照亮（快烧尽太阳灰渣）。

Pettigrew escaped. - Didn't make any difference?

逃走了 -怎么没改变？

Our Sun is a type of star known as a yellow dwarf.

太阳是称做黄一类恒。

Who was it, then? - Peter Pettigrew!

是谁 -彼得！

We now call such stars -- white dwarfs.

现在称这种恒为——白。

White Dwarf stars sometimes have other stars orbiting nearby.

白附近有时候有别恒环绕。

Peter Pettigrew? - Little lump of a boy.

彼得 -胖胖。

Except for a neutron stars and the white, brown, and black dwarves there are no more stars in the universe.

除了中子和白、褐和黑外，宇宙中再也没有恒了。

Or, it seems, when you're cruising past a white dwarf star.

或者可以说在你缓慢驶过一颗白时。

Smaller stars like the sun leave behind what are called white dwarves.

像太阳这样较恒会留下白。

It consists of a silicon crystal sprinkled with phosphorus atoms.

这个白由布满磷原子硅晶体组成。

So if brown dwarfs aren't brown, what color are they?

如果褐不褐色，那它是什么颜色呢？

The hydrogen then flows toward the white dwarf's magnetic poles.

然后氢气流向白磁极。

A white dwarf is the hot and dense center of a burned out star.

白是一颗燃烧殆尽恒炽热而密集中心。

So in essence it's cannibalizing its companion hydrogen-rich star.

从本质上说，白在吸食富含氢恒同伴。

The star collapses, the outer part expands, and the star becomes something called a White Dwarf.

恒坍缩，外层膨胀，恒变成了白。

Essentially they are White Dwarf stars that become nuclear bombs.

其实它就是变成核弹白。

The white dwarf's gravity can pull hydrogen gas from the companion star's surface.

白引力可以将氢气从伴表面拉出来。