penumbra
penumbra
The light around the moon is called the corona. It is the outermost portion of the sun's atmosphere. The corona is always present, but except during an eclipse it is hidden by the glare from the rest of the sun.
The corona, which is the sun's plasma 'atmosphere'.
The thin red line around the sun during an eclipse is called a chromosphere.
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.
penumbra
The darkest portion of the Moon's shadow during an eclipse is called the umbra.
It is called the Umbra, the 'lighter' part of the shadow is the Pen-umbra
Sunspot
"Umbra" means "shadow"; specifically the darkest part of the shadow of a planet or moon during an eclipse.
There are two parts of a shadow: the UMBRA and the PENUMBRA. UMBRA is the inner darker part of a shadow. PENUBMRA is the outher lighter layer of a shadow. During a solar eclipse, the area on the planet that witnesses a complete total solar eclipse would be under the moon's shadow's UMBRA. The area that views a partial solar eclipse would be under the PENUMBRAL shadow.
The light around the moon is called the corona. It is the outermost portion of the sun's atmosphere. The corona is always present, but except during an eclipse it is hidden by the glare from the rest of the sun.
The corona, which is the sun's plasma 'atmosphere'.
During a lunar eclipse the Moon passes through some portion of the Earth's shadow. (The Earth is in the middle)
partial lunar eclipse.
The white halo that can be seen during the Solar Eclipse is the Sun's Corona.
the sun and mon are place in same line