| 单词 | ecliptic |
| 释义 | ecliptic (once / 11927 pages) n Astronomers use the noun ecliptic to describe the sun's path as it's seen from the Earth. You're most likely to come across the word ecliptic in an astronomy class, since it's a technical term for the apparent path of the sun through the stars over the course of a year. It's not possible to see the ecliptic, since the rotation of the Earth complicates our perspective of the sun's movement, but astronomers have long described and drawn it. It's called an ecliptic because eclipses only happen when the moon crosses it. WORD FAMILYecliptic: ecliptics USAGE EXAMPLESIt’s what astronomers call the plane of the ecliptic. New York Times(Nov 04, 2016) As they spin around the sun, the known planets, asteroids, and most TNOs stay in roughly the same plane, known as the ecliptic. Science Magazine(Oct 25, 2016) “There can be many, many more planets than they’re seeing because the transit is not in the ecliptic relative to Earth,” says Batalha. Time(May 10, 2016) n 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 Hyper great circle a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center |
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