Information and stories about the starry sky in spring

March to May is spring every year. Take the starry sky seen at eight or nine o'clock in the middle of April as an example. Then you will see the Big Dipper bucket handle pointing east. To the south of the Big Dipper is Leo. Its head faces west, and it is composed of several bright stars, and it is curved and sickle-shaped. The brightest star is Xuanyuan XIV, which emits blue-white light and is 1. It is located on the ecliptic. The lion's tail is in the east. It is mainly composed of three stars in a triangle. To the west of Leo is Cancer, whose image is imagined as a big crab. In this constellation, you can directly see a dim light spot with your eyes, called the hive cluster. On the lower left of Leo is Virgo. Virgo's brightest star is called cornucopia. Cancer, Leo and Virgo are all zodiac signs. Between Xuanyuan XIV and Jiaokou, it is one of the intersections of the autumnal equinox, the ecliptic and the great equator. Every year around September 23, the sun seems to run on the ecliptic and pass through this sky area. Below Virgo is a quadrangle with four stars slightly deviating from the trapezoid, which belongs to corvus corax. Below the crow is Ophiuchus, which spans things. Naturally extending from the bucket handle of the Big Dipper, we will see a bright star, that is arcturus, the bright star of Capricorn. Arcturus is a sporadic star and the brightest star in the northern hemisphere. Between Leo and Capricorn is the constellation Ursa, which is very small and has no bright stars, but this small constellation is very famous: First, the North Pole is in this constellation, and second, this star region contains many celestial systems at the galaxy level, such as the constellation Ursa, and their secrets can only be revealed through astronomical telescopes.