Definition of Ecliptec
Ecliptic, the name given to the circular path in the heavens round
which the sun appears to move in the course of the year, an illusion
caused by the earth's annual circuit round the sun, with its axis
inclined at an angle to the equator of 23½ degrees; is the central line
of the Zodiac ( q. v.), so called because it was observed that
eclipses occurred only when the earth was on or close upon this path.
- Wikipedia
E*clip"tic (&esl;*kl&ibreve;p"t&ibreve;k),
n. [Cf. F. écliptique, L. linea
ecliptica, Gr. 'ekleiptiko`s, prop. adj., of an
eclipse, because in this circle eclipses of the sun and moon take
place. See Ecliptic, a.] 1.
(Astron.) A great circle of the celestial sphere, making
an angle with the equinoctial of about 23° 28′. It is the
apparent path of the sun, or the real path of the earth as seen from
the sun.
2. (Geog.) A great circle drawn on a
terrestrial globe, making an angle of 23° 28′ with the
equator; -- used for illustrating and solving astronomical
problems.
E*clip"tic, a. [L. eclipticus
belonging to an eclipse, Gr. 'ekleiptiko`s. See
Eclipse.] 1. Pertaining to the ecliptic;
as, the ecliptic way.
2. Pertaining to an eclipse or to
eclipses.
Lunar ecliptic limit (Astron.), the
space of 12° on the moon's orbit from the node, within which, if
the moon happens to be at full, it will be eclipsed. --
Solar ecliptic limit, the space of 17° from
the lunar node, within which, if a conjunction of the sun and moon
occur, the sun will be eclipsed.
- Webster's Unabridged Dictionary (1913)
- (Astronomy): The geometric plane that contains the sun and the orbit of the Earth
- The Nuttall Encyclopedia
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