行星的公转轨道差不多都落在称之为「黄道面(The ecliptic) 的平面上,即为地球公转轨道面。行星都是以同一方向绕著太阳公转,亦即从太阳的北极上空看都是逆钟向。
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obliquity of the ecliptic [天] 黄赤交角
inclination of the ecliptic 黄赤交角 ; 黄道倾角
axis of the ecliptic 黄轴 ; 黄道坐标轴
constellations of the ecliptic 黄道星座
Saturn still shines in the night though, farther eastward along the ecliptic plane.
尽管如此,土星仍然在黄道平面向东更远的地方发光。
Different circle in the sky which is the plane of the ecliptic of the solar system.
这将是另一个循环,这平面就是整个太阳系的黄道。
The ecliptic plane is defined as the imaginary plane containing the Earth's orbit around the sun.
黄道平面是一个假想的平面,理论上它包含了地球环绕太阳运行的轨道。
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