What will a lunar eclipse look like from moon?

What will a lunar eclipse look like from moon? Will earth become a completely dark circle?

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Yeah, you'll see earth as all dark, if it is total lunar eclipse.

In a Lunar eclipse earth comes in between the sun and the moon. Because of this, the sun rays don't reach the surface of moon.

As earth's sunward side is blocking light the other side will be darker. As you are standing towards shadowed side of earth, you cannot see earth at all.

All above explanation is accurate in the case of a total lunar eclipse.

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It would look like this (actual picture of the Earth, seen from the Moon, during a lunar eclipse):

Link to full page: http://apod.nasa.gov/apod/ap140407.html

The Earth would appear surrounded by a bright ring, even though the Sun is completely hidden behind it. The ring is sunlight refracted through the atmosphere. It's basically all the sunrises and sunsets, seen at once.

The Earth would never appear fully dark. The bright ring around it will always be there. This is due to the atmosphere.

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During a lunar eclipse on Earth, the Sun would be eclipsed by the Earth as seen from the Moon:

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What this animation does not show is the corona around the Sun (which would be partially visible when the sun has been occulted) and the reddish ring of light that would encircle the Earth due to the sunlight refracted by the atmosphere of the Earth.

Unlike a solar eclipse as seen on Earth, the stars are always visible since there is virtually no atmosphere on the Moon. Of course, until the Sun is totally occulted, it would be hard to see stars close to the Sun and the solar corona due to the brightness of the Sun. Furthermore, the Earth is 4 times as large as the Moon and so would cover most of the corona (or possibly all of the corona if the eclipse is central).

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