ecliptic
Definition from Wiktionary, the free dictionary
See also eclíptic
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English [edit]
Alternative forms [edit]
- ecliptick (obsolete)
Etymology [edit]
Pronunciation [edit]
Noun [edit]
ecliptic (plural ecliptics)
- (astronomy) The apparent path of the Sun in the sky. More accurately, it is the intersection of the celestial sphere with the plane of the ecliptic, which is the geometric plane containing the mean orbit of the Earth around the Sun. So named because an eclipse can occur only when the Moon lies on this plane.
Translations [edit]
Earth's orbital plane
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