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abstraction > mathematical concept > number > quantity > angle > elongation > planetary elongation > planetary elongation event > conjunction > occultation > eclipse

eclipse
subject			fact

eclipse	has definition Occultation of one celestial body by another which passes between it and the observer. The solar eclipse is caused by the passing of the Moon between the Sun and the Earth in this way; such an eclipse may be complete (total) or incomplete (partial). Eclipsing binary stars also accord with this pattern. Alternatively - and exceptionally - a lunar eclipse is caused by the passage of the Earth between the Sun and the Moon, so that the Earth's shadow falls across the Moon, again either totally or partially, depending upon the position of the observer.
	has definition Obscuration of one astronomical object (such as the sun) by another such object (such as the moon).
	has definition The total or partial obscuration of the light from a celestial body caused by its passage into the shadow of another body (cf. occultation).
	has definition The obscuration of a celestial body caused by its passage through the shadow cast by another body.
	is a kind of occultation
conjunction	has elongation 0°
event	has duration
	has synonym world point
	has time of occurrence
angle	has unit angle unit
number	has value

Kinds of eclipse :

• lunar eclipse (3 kinds, 9 facts) - An eclipse in which the Moon passes through the shadow cast by the Earth.
• solar eclipse (3 kinds, 12 facts) - An eclipse in which the Earth passes through the shadow cast by the Moon. It may be total (observer in the Moon's umbra), partial (observer in the Moon's penumbra), or annular. (See eclipse, annular.)