A Complete Collection of 100000 Whys
Fav十万个为什么
二十四个节气是怎样定出来的？
二十四节气是根据太阳在黄道上的位置、北斗七星的指向以及物候变化制定的，具体原因如下：
1、太阳黄道位置：太阳在黄道上每移动15度为一个节气，春分点为起点，全年分为24个节气。
2、北斗七星指向：古代通过观察北斗七星斗柄的指向来确定节气，如冬至、夏至等。
3、物候变化：结合黄河流域的气候和物候特征，古人通过观察自然现象（如植物生长、动物活动）来划分节气。
总结：二十四节气是根据太阳在黄道上的位置、北斗七星的指向以及物候变化制定的。
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