umbra

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Central region of a shadow that is totally dark because no light reaches it, and from which no part of the light source can be seen (compare penumbra). In astronomy, it is a region of the Earth from which a complete eclipse of the Sun can be seen.

Black and red recall the tunics worn by soldiers during the Napoleonic wars. Gold was added to create a flag similar to the French tricolour, a symbol of revolution. Effective date: 23 May 1949. >>