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The "penumbra" or outer shadow is the area of a shadow from which part of the light source, but not all of it, is visible.

For a total solar eclipse, the regions where the Moon's shadow only partially covers the Sun is called the penumbra. Areas where the maximum shadow occurs, where the Moon is centered on the Sun, is the umbra. An eclipse where the Moon does not cover the entire Sun is called an annular eclipse, and the shadow area is called the antumbra.

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What is the outer incomplete shadow formed during an eclipse?

The outer incomplete shadow formed during an eclipse is called the penumbra. This is where the sun's light is only partially blocked by the blocking object, resulting in a partial shadow being cast on Earth.


What is the different of umbra and penumbra?

Umbra and penumbra when referred to the moon describes the shadow which is formed when light is blocked from the sun, by the moon. This shadow which falls on the Earth and has two distinct regions; a partially shadowed area which is the penumbra and the centre point a totally dark umbra. We on Earth looking skyward and watching the shadow pass as the Earth revolves would describe the penumbra as a partial eclipse and the umbra as a total eclipse.


What does the umbra and the penumbra have to with with eclipse?

An umbra is formed when an object blocks all of the light from a light source. A penumbra is formed when light from one source is blocked with light from another source filling in some of the shadow, OR when a large light source is only partially blocked. http://www.learner.org/workshops/sheddinglight/highlights/highlights1.html


What type of shadow is formed when sunlight is blocked?

A darker area known as an umbra is formed when sunlight is completely blocked. If only partial blocking occurs, a lighter area called a penumbra is formed.


When was Penumbra - band - created?

Penumbra - band - was created in 1996.


How do you write a sentence using the word penumbra?

The penumbra landed on the eclipse.


When was Penumbra Diffuse created?

Penumbra Diffuse was created in 2006-01.


What is the contrast between an umbra an a penumbra?

the umbra is a darker shadow than the penumbra


What is the difference in Umbra and Penumbra in Xrays?

Penumbra is the excess fog from scatter radiation


When was Penumbra Theatre Company created?

Penumbra Theatre Company was created in 1976.


How do the umbra and penumbra relate to eclipse?

The umbra is the darker total shadow; the penumbra is the surrounding partial shadow.


What are the two parts of a shadow?

your shadow