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单词 Period of revolution
释义

Period of revolution

原声例句
大英百科全书

Kepler's third law states that the squares of the sidereal periods of revolution of the planets are directly proportional to the cubes of their mean distances from the Sun.

开普勒第三定律指出,行星公转周期的平方与它们到太阳的平均距离的立方成正比。

中文百科

自转 Rotation

(重定向自Period of revolution)
沿着自转轴转动的球体
数学中的自转
地球的自转
月球的公转

自转,是指对象自行旋转的运动,对象会沿着一条穿过本身的轴旋转,这条轴被称为「自转轴」。一般而言,自转轴都会穿越天体的质心。

恒星和行星都会自转,小天体亦大多会自转。作为天体的集合体,星系也会自转。

如果行星自转轴在长期运动中渐渐偏离原有方向,即会产生岁差。

英语百科

Rotation 自转

(重定向自Period of revolution)
A sphere rotating about an axis
Rotation of a planar figure around a point
Rotational Orbit v Spin
Relations between rotation axis, plane of orbit and axial tilt (for Earth).

A rotation is a circular movement of an object around a center (or point) of rotation . A three-dimensional object always rotates around an imaginary line called a rotation axis. If the axis passes through the body's center of mass, the body is said to rotate upon itself, or spin. A rotation about an external point, e.g. the Earth about the Sun, is called a revolution or orbital revolution, typically when it is produced by gravity.

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更新时间:2025/6/17 16:35:47