冲日
冲日
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本周六也就是3月3日是火星冲日的时刻。
Because Saturday , March 3 , is the Mars opposition .
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小行星的行星摄动,轨道改进和冲日星历表全部连续的自动计算
Automatic calculation of planetary perturbations and improvement of orbits and opposition ephemeris of asteroids
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星期六将有一个由天文专家主持的免费直播的火星冲日讨论组。
But Saturday there 'll be a free live streaming of the Mars Opposition , hosted by astronomy experts .
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冲日时火星正面反射太阳光至地球,且距离又较近,故显得特别光亮。
During opposition Mars reflect Sun light directly to the Earth at a closer distance , so Mars will appear much brighter .
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火星冲日是指火星和太阳正好运行到地球的两侧。
The name - the Mars opposition - means that Mars and the sun are on , well , opposite sides of us .