Formulas and laws for observing celestial phenomena

Spring (Fisherman's Song): The spring breeze sends warmth to learn to recognize the stars, and the handle of Beidou points east. The two stars in Doukou point to the North Pole and find the direction of the North Pole. The lion lies in the spring night sky, and Xuanyuan is a first-class star. Mu Fu grand sedan chair along the bucket handle, the stars shine on the voyage! Summer (Little Star): The barrel handle refers to the summer night in the south, and Scorpio people are blind. Looking north along the Milky Way, Skyhawk Qin Tian is arranged on both sides. Swans fly, the milky way is crooked, and the cowherd and the weaver girl are blue and white. The heart is red, and the heart is shining. Remember the starry sky on a summer night. Autumn (snail and oriole): In autumn night, the Beidou rises from the ground, and the fairy queen rises to heaven with five stars. The fairy word refers to the northeast, and pegasus flies in the air. Perseus illuminates the night sky, and the starlight in Daling will change. The sky in the south is quiet and bright.