Centimeters and Inches The centimeter 1 is a common unit of length from the metric system. It is equal to 10 millimeters and 0.01 meter. In other words, one meter consists of 100 centimeters.
Penumbra is a partial outer shadow that is lighter than the darker inner shadow umbra (e.g. the area between complete darkness and complete light in an eclipse). It is a friâ¦nge section of half shadow resulting from the partial obstruction of light by an opaque object.
A penumbral eclipse is an eclipse of the Moon where the Moon only passes through the outer edge of the Earth's shadow (the penumbra) and does not pass through the main part of the shadow (the umbra).