Knowledge of the autumn constellation

September ~ 165438+ 10 is autumn every year. Take the starry sky seen at eight or nine o'clock in the middle of 65438+ 10 as an example. At this time, the Big Dipper has reached the low altitude in the north. Generally speaking, it is not easy to see the Big Dipper in the south of the Yangtze River Basin in China.

However, please rest assured that there is still an "assistant" to replace the Big Dipper, and that is the Hou Xian constellation. At this time, Hou Xian constellation is appearing overhead, and its main bright star forms a W-shape. Polaris can also be found through the extension of the connection between α star and κ star.

To the south of Cassiopeia is Andromeda, which looks like the horn of a bull. One of the famous celestial bodies is the Andromeda galaxy (M3 1), which is a bright spot that can be almost directly seen by the naked eye near the gamma star.

The northeast of Andromeda is Perseus, which connects the fairy and the queen, and the northwest of Cassiopeia is Cepheus, which is called "royal constellation" in ancient Greek mythology: Cepheus (king), Cassiopeia (queen), Andromeda (Andromeda), Perseus (Perseus), Pegasus (flying horse) and Cepheid variable (sea monster).

The center of the starry sky in autumn night is Andromeda's "neighbor"-Pegasus. Ancient Greek mythology imagined it as a winged flying horse, and its main bright star and Andromeda α together formed a huge square. To the south of Pegasus are Pisces and Aquarius, which are the zodiac signs, and to the east of Aquarius are whales. Although there are not many bright stars in the starry sky in autumn, it is still a good time to identify the stars.

Scientists are making unremitting research and exploration on the unpredictable and wonderful starry sky, and many unknown mysteries will be revealed. Through this study, we learned the knowledge about the constellation, broadened the knowledge of the textbook, deepened our understanding, refuted the absurd view of the birth constellation, and enhanced our interest in learning geography and studying geography.