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.
Written By: Penumbra, (from Latin paene, âalmostâ; umbra, âshadowâ), in astronomy, the outer part of a conical shadow, cast by a celestial body, where the light from the Sun is partially blockedâas compared to the umbra, the shadowâs darkest, central part, where the light is totally excluded.