penumbra | srpsko - engleski prevod

ETYM New Lat., from Latin paene almost + umbra shade.
A fringe region of partial shadow around an umbra.
Partly light margin surrounding complete shadow, especially during an eclipse.
The region of partial shade between the totally dark part (umbra) of a shadow and the fully illuminated region outside. It occurs when a source of light is only partially obscured by a shadow-casting object. The darkness of a penumbra varies gradually from total darkness at one edge to full brightness at the other. In astronomy, a penumbra is a region of the Earth from which only a partial eclipse of the Sun or Moon can be seen.