二月二,龙抬头古时候,人们观察到名叫苍龙七宿的星群出没周期与一年农时的周期一致。春天农耕开始之际,苍龙七宿在东方夜空中开始慢慢上升,最先露出的是明亮的龙首——角宿;夏天作物生长,苍龙七宿高悬于南方夜空;到了秋天,庄稼丰收,苍龙七宿也开始在西方下落;冬天万物静寂,苍龙七宿则隐藏于北方 February 2, the rise of the dragon In ancient times, people observed that the name of Canglong seven places of the constellation and the cycle of a year when the same period of agriculture. The beginning of spring farming, Cang Long seven places in the night sky began to slowly rise, the first exposed is the bright dragon head - spica; summer crop growth, Cang Long seven places suspended in the southern sky; to the fall, crop harvest , Cang Long seven places also began to fall in the West; all things winter silence, Cang Long seven places are hidden in the north