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 darkest part of a shadow during an eclipse is called the Umbra.
It is called the Umbra, the 'lighter' part of the shadow is the Pen-umbra
The dark, center, dark part of the shadow is called the umbra, and the lighter part is called the perumbra.
The darkest part of the shadow is the umbra.
The penumbra surrounds the umbra.
It is called the umbra.
your body
Penumbra
the iodine stains the cell, so we can see the structures better. the nucleus is darkest
Its called the cell membrane or the plasma membrane.
Only indirectly. The part of the cell that regulates the movement of material is the cell membrane, which surrounds the cell.
This is the cell membrane. It surrounds the outside of the cell.
The cell membrane, which surrounds the cell and is responsible for which molecules are allowed to diffuse into or out of the cell and which molecules are impermeable to the membrane
The penumbra
the darkest part of the moon's shadow is called the umbra
The darkest part of the moon is called the Umbra. That is the darkest not the largest.
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
That part of the shadow is called the penumbra.
The darkest part of a shadow is called the "umbra" The lighter part of a shadow is called the "penumbra" An "antumbra" is the area of light which surrounds the object creating a shadow, as in a "ring of fire" eclipse (like the recent one in May, 2012). It can best be seen when the viewer is beyond the focal point of the umbra, but in line with it.
It is called the Umbra, the 'lighter' part of the shadow is the Pen-umbra
umbra
"Umbra" means "shadow"; specifically the darkest part of the shadow of a planet or moon during an eclipse.
"Umbra" is correct. However, another way to look at it is that the darkest part of the Earth's shadow is midnight, for what is night but the shadow of the Earth?
The darkest, "total" shadow is called the "umbra", while the partial shadow is called the "penumbra", from the latin prefix "pen" meaning "almost".