Origin of lunar eclipse
Definition for lunar eclipse (2 of 2)
- the obscuration of the light of the moon by the intervention of the earth between it and the sun (lunar eclipse) or the obscuration of the light of the sun by the intervention of the moon between it and a point on the earth (solar eclipse).
- a similar phenomenon with respect to any other planet and either its satellite or the sun.
- the partial or complete interception of the light of one component of a binary star by the other.
verb (used with object), e·clipsed, e·clips·ing.
Origin of eclipse
British Dictionary definitions for lunar eclipse (1 of 2)
British Dictionary definitions for lunar eclipse (2 of 2)
Derived Formseclipser, noun
Word Origin for eclipse
Science definitions for lunar eclipse (1 of 2)
A Closer Look
The Sun is about 400 times wider than the Moon and 400 times farther from Earth, causing the two to appear to be almost exactly the same size in our sky. This relationship is also responsible for the phenomenon of the total solar eclipse, an eclipse of the Sun in which the disk of the Moon fully covers that of the Sun, blocking the Sun's light and causing the Moon's shadow to fall across the Earth. A total solar eclipse can be viewed only from a very narrow area on Earth, or zone of totality, where the dark central shadow of the Moon, or umbra, falls. From this perspective one can view the Sun's delicate corona-tendrils of charged gases that surround the Sun but are invisible to the unaided eye in normal daylight. This is also the only time when stars are visible in the day sky. Those viewing the eclipse from where the edges of the Moon's shadow, or penumbra, fall to Earth will see only a partial solar eclipse. The orbits of the Earth around the Sun and of the Moon around the Earth are not perfect circles, causing slight variations in how large the Sun and Moon appear to us and in the length of solar eclipses. The maximum duration of a total solar eclipse when the Earth is farthest from the Sun and the Moon is closest to the Earth is seven and a half minutes.
Science definitions for lunar eclipse (2 of 2)
Culture definitions for lunar eclipse
In astronomy, the blocking out of light from one object by the intervention of another object. The most dramatic eclipses visible from the Earth are eclipses of the sun (when sunlight is blocked by the moon) and eclipses of the moon (when sunlight on its way to the moon is blocked by the Earth).