英语词汇“precession of the equinoxes”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

precession of the equinoxes

noun [mass noun] Astronomy

1The slow retrograde motion of equinoctial points along the ecliptic.Because of the precession of the equinoxes, the equinox and solstice points have each moved westward about 30 degrees in the last 2,000 years....

He was not the first Chinese astronomer to discover the precession of the equinoxes (Yu Xi did so in the fourth century) but he was the first to take this into account in calendar calculations.
About fifty years after Liu's remarkable contributions, a major advance was made in astronomy when Yu Xi discovered the precession of the equinoxes.

1.1The resulting earlier occurrence of equinoxes in each successive sidereal year.

As the earth rotates about its axis it responds to the gravitational attraction of the sun upon its equatorial bulge, so that its axis of rotation describes a circle in the sky, with a period of about 26,000 years. The precession of the equinoxes was discovered by Hipparchus in circa 125 bc, when the vernal equinox was in Aries.

单词	precession of the equinoxes
释义	precession of the equinoxes noun [mass noun] Astronomy 1The slow retrograde motion of equinoctial points along the ecliptic.Because of the precession of the equinoxes, the equinox and solstice points have each moved westward about 30 degrees in the last 2,000 years.... He was not the first Chinese astronomer to discover the precession of the equinoxes (Yu Xi did so in the fourth century) but he was the first to take this into account in calendar calculations. About fifty years after Liu's remarkable contributions, a major advance was made in astronomy when Yu Xi discovered the precession of the equinoxes. 1.1The resulting earlier occurrence of equinoxes in each successive sidereal year. As the earth rotates about its axis it responds to the gravitational attraction of the sun upon its equatorial bulge, so that its axis of rotation describes a circle in the sky, with a period of about 26,000 years. The precession of the equinoxes was discovered by Hipparchus in circa 125 bc, when the vernal equinox was in Aries.
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