Total solar eclipse geometry, illustration. Total solar eclipses occur when the Moon passes directly in front of the Sun. The lines in this diagram show the shadow (umbra, dark grey) cast by the Moon, with the partial shadow (penunmbra) shown in light grey. A partial solar eclipse is seen from within the penunmbra. Total solar eclipses usually occur less than once a year, and can only be seen from a small area of the Earth's surface. Totality usually lasts for a few minutes. This illustration represents the total solar eclipse at 17:05:40 UTC on 21 August 2017. During this eclipse, the umbra passed across the USA from the Pacific to the Atlantic coasts. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / NASA's Scientific Visualization Studio / NASA |
Taille de l’image : | 3600 px × 2700 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |