A full moon is fully lit when it is approximately on the opposite side of the earth than the sun. The sun is approx directly behind you when you see a full moon. It is shining on the opposite side of the earth to where you are. It is more or less night time where you are.
I don't know why the middle of the moon is not much brighter than the sides. I guess it has something to do with the wide dispersion angles of the light hitting rough matt moon rock and dust.
It's the geometry of a scattering surface. The angle of incidence gets smaller toward the edge of the Moon, but the actual illuminated area gets broader in inverse proportion, so the apparent brightness is the same out to the edge.
The moon is lit fully by the sun, but we see it from the side so to speak unless it's on the opposite side of the earth to the sun
So why is a full moon fully lit from our perspective, why does it not show a spherically shadow? It illuminates more like a paper plate.
A full moon is fully lit when it is approximately on the opposite side of the earth than the sun. The sun is approx directly behind you when you see a full moon. It is shining on the opposite side of the earth to where you are. It is more or less night time where you are.
Oh I see what you mean.
I don't know why the middle of the moon is not much brighter than the sides. I guess it has something to do with the wide dispersion angles of the light hitting rough matt moon rock and dust.
It's the geometry of a scattering surface. The angle of incidence gets smaller toward the edge of the Moon, but the actual illuminated area gets broader in inverse proportion, so the apparent brightness is the same out to the edge.