二十四方位
御定星历考原 · section 8 · 李光地 等 奉敕撰 · 526 characters
Original text
四正四隅分配八卦是为八方然正隅之间相距尚逺又以十二支象地皆有定方然十二不能均分于八方惟子午卯酉又正应四正之位故以子代坎以午代离以卯代震以酉代兑余则夹处于四隅又以十干分五行惟戊己配中央余则夹处于四正合卦四地支十二天干八共二十四每方各三戌干亥也壬子癸也丑艮寅也甲卯乙也辰巽巳也丙午丁也未坤申也庚酉辛
也分配八卦二十四方位由是而
节 日岀入昼夜时刻
日行黄道岀入于赤道之内外春秋分则正当黄赤道之交而与地平交于卯酉日岀卯正日入酉正地平上下其度相等故昼夜适均所谓日中宵中也春分以后行赤道北夏至而极北天度分界地平上多下少故昼长夜短所谓日永也秋分以后行赤道南冬至而极南天度分界地平上少下多故昼短夜长所谓日短也二分前后日行二道之交其纬行疾故数日而差一刻二至前后日行二弧之背其纬行迟故半月而差一刻此一岁之大略也自京而北夏昼较长冬昼较短为近北也若至于北极下则赤道为地平夏则有昼而无夜冬则有夜而无昼此北之极也自京而南夏昼较短冬昼较长为近南也赤道之下则赤道为天顶冬至在南夏至在北相去适均则冬夏相等赤道以南则北极入地下南极岀地上冬至日去天顶近昼反长夏至日去天顶逺昼反短若至于南极下则赤道又为地平冬则有昼而无夜夏则有夜而无昼此南之极也南北不同时刻亦异故各省日岀入昼夜时刻皆以地之纬度而定焉
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Witness: https://zh.wikisource.org/wiki/%E5%BE%A1%E5%AE%9A%E6%98%9F%E5%8E%AF%E8%80%83%E5%8E%9F%20(%E5%9B%9B%E5%BA%AB%E5%85%A8%E6%9B%B8%E6%9C%AC) · wikisource/御定星厯考原_四庫全書本_卷1.txt · sha 09abc9924892d4dd
Read this against your own chart
Cast your own four pillars first, then come back to the text.