I think you are asking what is the lighter part of the Earth's shadow on the Moon that surrounds the darkest part. The penumbra is this lighter part of the shadow. The darkest part is the umbra.
Because the Sun is so much larger than either the Earth or the Moon, the shadows of the Earth and the Moon are cone-shaped, tapering to a point out in space. Two cones, actually; an inner cone of complete shadow and an outer cone of partial shadow.
The inner, total shadow is called the "umbra". The outer, partial shadow is called the "penumbra".
Actually there is only one shadow but part of it is more dark of a full shadow than the other. During a solar eclipse, the moon casts a shadow on earth. Light is blocked by the moon but then it starts to bend back. The bending back causes there to be an umbra and a penumbra. The umbra is the darker part of the shadow and people in it see a total solar eclipse. (no sun except the corona) The penumbra is the lighter part of the shadow which more people are inside. People inside this only see a partial solar eclipse. (part of sun is blocked)
The darkest part of the moon is called the Umbra. That is the darkest not the largest.
It is the UMBRA.THE PENUMBRA, IS A PART OF THE SHADOW THAT SURRROUNDS THE DARKEST PARTSOF THE MOON.
The shadow of the moon is divided into three parts. Its shadow that surrounds its darkest part is called the Penumbra shadow.
The darkest part of the moon's shadow is called the umbra.
umbra and penumbra
EVERY shadow has both an umbra and a penumbra,
if the light source is not a single point.
The darkest part of the moons shadow is called the crest.
The umbra and the penumbra
The umbra is the dark part of a shadow and the penumbra is the fringe or half shadow.
a lunar eclipse
An eclipse. When the Earth is in the Moon's shadow, it's a solar eclipse; when the Moon is in the Earth's shadow, it's a lunar eclipse.
Eclipses are shadows. A solar eclipse is the Moon's shadow on the Earth; a lunar eclipse is the Earth's shadow on the Moon.
Shadows. All eclipses are shadows. A lunar eclipse is the shadow of the Earth on the Moon. A solar eclipse is a shadow of the Moon on the Earth.
a solar eclipse. During a solar eclipse, the moon blocks the light from the sun and casts a shadow on Earth, temporarily darkening the sky.
When there is two light soucres near the object
During an eclipse of the moon, the edge of Earth's shadow is always the arc of a circle. Only spheres casts circular shadows; a flat surface would not do so.
This can refer to the shadow the moon casts in space. If it touches the earth there is a solar eclipse at that point. It can also mean the shadows cast by objects when there is bright moonlight.
a lunar eclipse
A solar eclipse occurs when the moon casts a shadow on Earth. A lunar eclipse occurs when Earth casts a shadow on the moon. Since Earth is larger than the moon, it casts a larger shadow, resulting in a longer eclipse.
yes all eclipse have shadows because the sun is covered.
Air
Solar Eclipse!
Earth casts the shadow.
Yes moon have do shadows due to the craters and rocks, creating a surface βroughnessβ that casts shadows.
When the Earth casts a shadow on the moon.
solar eclipse