Penumbra

http://astrothesaurus.org/uat/1205

alt label
Penumbras
dcterms modified equal to or less than 2020-11-17T19:19:56.818Zequal to or more than 2020-11-17T19:19:56.818Z
broader
http://astrothesaurus.org/uat/442 original
narrower
1205 original
definition The portion of a shadow in which light from an extended source is partially but not completely cut off by an intervening body; the area of partial shadow surrounding the umbra. The lighter part of a shadow during an eclipse. An observer standing in the penumbra of a Solar eclipse will see a partial eclipse.
type
Resource original
Concept original
contributor AAS_Frey.Katie original