The umbra is gone, but you're still in the penumbral shadow.

本已经移开，但你仍处在。

When the umbra touches the Earth, we get a total solar eclipse.

当本接触地球时，我们会看到日全食。

You're getting less light, and so you're technically shadowed, but it's not quite as dark as the umbra.

照在你身上的阳光减少，所以严格上说来你处于阴，但并不像本那么黑。

The umbra is the dark part of Earth's shadow in a lunar eclipse and the moon shadow in a solar eclipse.

本是月食时地球阴和日食时月球阴的黑暗部分。

Then, finally, the Moon's black disk completely covers the Sun — the umbra sweeps over your location.

最后，当本扫过你所在的位置时，黑暗的月球完全遮住了太阳。

That's how long it takes the umbra to move over one spot on the Earth.

这就是本扫过地球上某一点所需要的时间。

The narrow shadow in the middle, where Earth is totally blocks the sun’s light, is called the umbra.

间较狭窄的阴内，地球完全遮挡住了太阳光，这一部分阴成为本。

Here's the penumbra, a partially shaded outer region surrounding the umbra, a fully shaded inner part that's darkened.

这是区，一个包围了本区的外部区域，本区是一个完全黑暗的内部区域。

Finally, the Moon starts to enter the Earth's umbra, and the real eclipse begins.

最后，月亮开始进入地球的本，真正的月食就开始了。

That means this shadow is very dark, and we call it the umbra (which is Latin for — you guessed it — “shadow”).

这也意味着阴非常暗，我们称之为本（umbra）（猜猜这个英文单词的拉丁文意思？对啦，就是‘阴’）。

But travel to a spot within the path of the dark inner shadow, called the umbra, and you'll experience the majesty of a total eclipse.

然而如果你进入到阴的里层部分-“本”，你将体验到雄伟壮观的日全食。

For people within the umbra, or darkest part of the moon's shadow, the light of the sun appears to vanish completely and the sky becomes as dark as night.

月亮的本，也就是最暗的部分所在之处，那里的人本可以看到太阳的光亮似乎完全消失了，天空也像晚上一样黑。

During totality, where the moon is completely inside Earth’s umbra, a tiny bit of the sun’s light is bent through our atmosphere and comes out the other side, like a ring-shaped lens.

在总体上，月亮完全在地球的本内部，一小部分太阳的光线在我们的大气层弯曲，从另一侧出来，就像一个环形镜头。

The Earth is bigger than the Moon, so the Earth's umbra is much wider; while a solar eclipse is over in minutes, a total lunar eclipse can last nearly two hours.

地球比月球大，所以地球的本要宽得多；虽然日全食在几分钟内就结束了，但月全食可以持续近两个小时。

During a total lunar eclipse the shadow of the Earth will cross gradually over the surface of the moon, but once the moon has entered the umbra, completly blocking the sun's light, the moon will often look reddish.

在月食的整个过程，地球阴会逐渐扫过月球表面，但是一旦月球进入地球暗完全接收不到太阳光，月球通常看起来会是淡红色。