Customize the spring starry sky password for you【Check it out!】 The starry sky always brings endless romance and fantasy, but did you know that the starry sky is different in each season, and there is its own "star" and "season" code? The science popularization experts of the Purple Mountain Observatory of the Chinese Academy of Sciences sorted out several spring starry sky knowledge points, and together check this spring starry sky code customized for you! Since ancient Times in China, there has been a folk proverb of "the bucket handle is the east finger, the whole world is spring". This is the astrological and seasonal law summarized by the ancients according to observations. What is the "bucket handle" here? How do you judge the seasons based on the stars? Hu Fanghao, director of the Science Popularization Department of the Purple Mountain Observatory, introduced that the so-called "bucket handle" refers to the "spoon handle" of the Seven Stars of the Big Dipper. The Big Dipper is seven bright stars in the northern sky, which are arranged in a spoon-shaped manner, four of which are in the shape of a "bucket spoon" and the other three stars are in the shape of a "bucket handle". In the north of our country, this "big spoon" is always above the horizon, rotating around the North Star. As the Earth orbits the sun, the direction of the handle that people see every night is always in a slow change. With a one-year cycle, the direction of the bucket handle is basically the same as that of the seasons. At about nine o'clock in the spring night, the bucket handle points to the east, and then every three months, it rotates ninety degrees, forming the law of "the east finger of the bucket handle, the whole world is spring; the south finger of the bucket handle, the world is summer; the west finger of the bucket handle, the world is autumn; the north finger of the bucket handle, the world is winter". There are also some bright stars, which are on the horizon on spring nights, and are very suitable for observation. For example, Leo's Five Emperors I, Virgo's Horned One and Shepherd's Arcturus are all famous bright stars, which are arranged in a triangle and hang in the night sky, forming the famous "Spring Triangle". In the first half of spring, you can also see the brightest stars at night, Sirius, and the brightest star in taurus, Pedrogue. In addition, April will also stage lunar occultation of Mars, supermoon and other celestial phenomena. Interested members of the public may wish to look up at the stars and look for these rare "stars and moon romances".
Source: Xinhua Net