ecliptic – מילון אנגלי-אנגלי
ecliptic
adj.
of an eclipse; of the orbit or route of the sun
n.
path of the sun
Ecliptic
The
ecliptic is the apparent path of the
Sun on the
celestial sphere, and is the basis for the
ecliptic coordinate system. It also refers to the
plane of this path, which is
coplanar with the
orbit of Earth around the Sun (and hence the apparent orbit of the Sun around Earth). The path of the Sun is not normally noticeable from Earth's surface because
Earth rotates, carrying the observer through the cycles of
sunrise and
sunset, obscuring the apparent motion of the Sun with respect to the stars.
ecliptic
Noun
1. the great circle representing the apparent annual path of the sun; the plane of the Earth's orbit around the sun; makes an angle of about 23 degrees with the equator; "all of the planets rotate the sun in approximately the same ecliptic"
(hypernym) great circle
Ecliptic
(a.)
Pertaining to the ecliptic; as, the ecliptic way.
(a.)
Pertaining to an eclipse or to eclipses.
(a.)
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.
(a.)
A great circle drawn on a terrestrial globe, making an angle of 23¡ 28' with the equator; -- used for illustrating and solving astronomical problems.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
Ecliptic
Ecliptic An imaginary great circle on the celestial sphere, defining the apparent annual path of the sun around the earth. A line drawn through the center of this circle and perpendicular to its plane constitutes its axis, the extremities of which are the poles of the ecliptic. The axis of the ecliptic and the axis of the earth are inclined to each other at an angle of 23 degrees 27 minutes, which is said to be at present decreasing at the rate of 1 minute in 128 years. The relative movement of the two axes causes the precession of the equinoxes.
