dayside auroral oval 昼侧椭圆极光
dayside aurora 昼侧极光 ; 日侧极光
dayside magnetopause 向阳面磁顶
dayside aurora oval 日侧极光卵
The dayside has the most direct contact with the solar wind.
行星的光面(白昼侧)与太阳风有着最直接的接触。
There are times when the field is northward and there are strong flows in the dayside polar ionosphere.
在磁场方向为北的情况下，电离层白昼侧的极地地区也有很强的能量传递。
Sometimes, they happen to see the orbits of exoplanets edge-on. In those cases, the planet alternately shows more of its dayside and then more of its nightside as it circles its star.
有时，天文学家们碰巧从侧面观察到系外行星的轨道，在这种情况下，行星在围绕恒星旋转的时候就会交替地呈现出有时光面较多、有时暗面较多。
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