What does a complete blood count measure? A CBC measures the amount of 3 types of cells in your blood: White blood cell count. A white blood cell count, also called a leukocyte count, measures the total number of white blood cells in a sample of blood.
In the umbra, the light from the Sun is completely blocked by the Earth. Our lunar observer would see a total solar eclipse; we see the Moon darkened, but glowing a dull red from light scattered by the Earth's atmosphere.
Solar eclipse 2015: what you need to know. A view of an annular eclipse in progress in Kaifeng in central China's Henan province. Solar eclipse 2015: what you need to know. Parts of the world will witness a solar eclipse on Friday â a rare phenomenon in which the sun is completely obscured by the moon. Hereâs everything you need to know about the background of the solar eclipse, where to view it and how.