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ecliptic    音标拼音: [ɪkl'ɪptɪk]
n. 黄道
a. 黄道的,蚀的

黄道黄道的,蚀的

ecliptic
n 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"

ecliptic \e*clip"tic\ ([-e]*kl[i^]p"t[i^]k), n. [Cf. F.
['e]cliptique, 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[deg] 28'. It is
the apparent path of the sun, or the real path of the
earth as seen from the sun.
[1913 Webster]

2. (Geog.) A great circle drawn on a terrestrial globe,
making an angle of 23[deg] 28' with the equator; -- used
for illustrating and solving astronomical problems.
[1913 Webster]


Ecliptic \E*clip"tic\, a. [L. eclipticus belonging to an
eclipse, Gr. 'ekleiptiko`s. See {Eclipse}.]
1. Pertaining to the ecliptic; as, the ecliptic way.
[1913 Webster]

2. Pertaining to an eclipse or to eclipses.
[1913 Webster]

{Lunar ecliptic limit} (Astron.), the space of 12[deg] 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[deg] from the lunar
node, within which, if a conjunction of the sun and moon
occur, the sun will be eclipsed.
[1913 Webster]


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  • Ecliptic - Wikipedia
    The ecliptic or ecliptic plane is the orbital plane of Earth around the Sun [ 1 ] [ 2 ] [ a ] It was a central concept in a number of ancient sciences, providing the framework for key measurements in astronomy, astrology and calendar-making
  • Ecliptic | Definition, Facts, Obliquity, Zodiac | Britannica
    Ecliptic, in astronomy, the great circle that is the apparent path of the Sun among the constellations in the course of a year; from another viewpoint, the projection on the celestial sphere of the orbit of Earth around the Sun The zodiac constellations are arranged along the ecliptic
  • What Is the Ecliptic: The Suns Path In the Sky - Star Walk
    The ecliptic is more than just a scientific term – it's a starting point for exploring the night sky With the ecliptic, you can track the movements of the Sun, Moon, planets, zodiac constellations, and more
  • What Is the Ecliptic? - timeanddate. com
    The ecliptic is the name given to the path the Sun follows through the stars and constellations over the course of a year We can’t see the stars behind the Sun because of the bright blue sky The only exception to this is when the sky turns dark during a total solar eclipse
  • The ecliptic is the sun’s path in our sky - EarthSky
    Technically speaking, it’s a projection of the plane of Earth’s orbit around the sun, traced onto our sky Practically speaking, the ecliptic forms a great circle around the sky and is a useful
  • (2) The Path of the Sun, the Ecliptic - NASA
    Planets seen in the sky are always near the ecliptic, which means that their orbits are never too far from the plane of the ecliptic In other words, the solar system is rather flat, with all its major parts moving in nearly the same plane What about the connection between "ecliptic" and eclipses?
  • Orbits and the Ecliptic Plane - HyperPhysics
    The apparent path of the Sun's motion on the celestial sphere as seen from Earth is called the ecliptic The ecliptic plane is tilted 23 5° with respect to the plane of the celestial equator since the Earth's spin axis is tilted 23 5° with respect to its orbit around the sun
  • The Ecliptic - Sky Tonight
    The ecliptic is the year-long path of the Sun against the background of fixed stars Is it the same as the Celestial Equator, or different? Different The celestial equator is a projection of the earth's equator, and is inclined to the path of the sun (the ecliptic) by 23 5 degrees The ecliptic is important because where the Sun travels, the
  • What is the Ecliptic in Astronomy? A Guide to the Planetary Highway
    Very simply, the ecliptic is the line of the sun’s apparent path through the sky The path of the ecliptic is inclined at 23 5° to the plane of our orbit around the sun because our planet ‘s axis is tilted by that amount to the sun’s equator
  • Observation - The Plane of the Ecliptic - Astronomy Online
    Imagine if we trace a path of the Sun, Moon and planets about the sky, we will have the ecliptic plane We "see" the ecliptic arc across our sky because of Earth's tilt, but what this is in reality is the orbital planes of all the planets about our Sun





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