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黄???二宫与二??四节气 十二月 7, 2005

Posted by ginger in 网络花香.
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黄???二宫

二??四节气是一个统称,其中包括??二个中气和??二个节气,中气和节气相间地排列。从春分起??二个中气分别是春分?谷雨??满??至?大暑?处暑?秋分?霜???雪?冬至?大寒和雨水,分属于??二个以地支排列的月份(图一)。春分?的节气是清明,其?的节气?次是立??芒???暑?立秋?白露?寒露?立冬?大雪??寒?立春和惊蛰。
图一:
回归年?朔望月和二??四节气
跟二??四节气相似,?代的黄???二宫亦是以春分点为起点而把黄?分为12等份(图二),因此?星学中??二星座的开始?结?日期或其??一天必定是二??四节气中的中气。??二星座对应的黄?度是在二?多年?定下的,由于地?自转轴的摆动,现在观测到的星座?置与黄?度已?符。
图二:

二??四节气与黄???二宫

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