Observation record of starry sky in summer

June to August is summer every year. Take the starry sky seen at eight or nine o'clock in mid-July as an example. At this time, the bucket handle of the Big Dipper points to the south. Arcturus in the starry sky on a spring night has moved to the western sky. The most striking thing in the starry sky on a summer night is the vast galaxy that spans space from northeast to south. Vega on the west bank of the Milky Way is the bright star in Lyra, and opposite Vega across the Milky Way is Altair, also known as Zenith II. Altair belongs to Aquila, and fairy tales imagine it as an eagle flying high. There is a small star on each side of Altair. These are the two children of Cowherd and Weaver Girl in fairy tales. Together with the cowherd, they are called the North Star, and there are four small stars on the lower left of the cowherd to form a diamond. These stars belong to the dolphin constellation. From the dolphin constellation to the northeast, you will see a larger constellation called Cygnus. It is mainly composed of six stars in a big cross. Ancient Greek mythology imagined it as a swan flying low over the Milky Way. The bright star on the swan's tail is called Tianjin IV. The milky way in the southern sky is particularly bright in the summer night sky. There are many interesting things there. First of all, the huge and spectacular Scorpio, with its head facing west and its tail facing east, is very realistic. Scorpio has a bright red star, just like Scorpio's heart. It is the famous antares, also known as Mars, also known as the quotient star. To the east of Scorpio is Sagittarius. The ancient Greeks imagined it as a monster half man and half horse. Sagittarius is the brightest region in the Milky Way, at the center of the Milky Way. Observing this sky area through astronomical telescope, you will find many bright binary stars, clusters and nebulae of different shapes; There are six stars in this constellation that form a "bucket shape" similar to the Big Dipper, which is called Nandou Six Stars.