After Jiahao and Wanyu came back together, Wang Tao and Yun Feifei looked at them and smiled. Seeing this, Jiahao asked: "What are you two doing? Why are you laughing? You haven't recovered from the sweetness yet, right?" " When Wang Tao saw this, he immediately wanted to change the subject and said, "Where have you two been? We have already eaten, and we have left food for you. " Upon seeing this, Jiahao was also afraid that Wang Tao would ask more questions, so he said. : "Really, great, I'm already very hungry, let's eat, eat." As he said this, he gave Wanyu a look. Wanyu understood, and the two of them rushed in quickly. Wang Tao and Yun Feifei looked at each other when they saw this. Yun Feifei said curiously: "When did the two of them become so tacitly understanding? I have never seen these two people so active in eating." Neither Jiahao nor Wanyu said anything, but they themselves As he started eating, Wang Tao and Yun Feifei walked in and saw how delicious the food was in the next year. Wang Tao and Yun Feifei finished cooking and watched them eat. Jiahao suddenly felt uncomfortable, so he said: "What's going on with you two? Are you not full? Come on, eat more." Yun Feifei shook her head directly, shaking her head like a rattle, Wang Tao then He smiled and said, "Where did you two go just now? You haven't been back for such a long time. The scenery outside is very nice, right?" Jiahao then looked at Wanyu and saw that Wanyu was eating with her head down. Jiahao didn't know what to say. Jiahao suddenly remembered something, so he said to them: "We are blessed tonight." Wang Tao and Yun Feifei asked curiously: "What are we blessed for?" Jiahao then said mysteriously: "I know you don't see it. TV, don¡¯t pay attention to the news, let me tell you, there will be a meteor shower at ten o¡¯clock tonight, and there is a very rare possibility of encountering a broom star, which is what we call a comet. Moreover, it is a once-in-a-century event in our location. It is the best location for vision, and I also checked it in advance last night. It can be said that it is cloudless tonight, and the vision is quite good, so tonight we will watch the stars and constellations together, and wait for the meteor shower together. Come, how about it?" At this time, they were all very excited when they heard that there would be a meteor shower tonight. They all quickly asked for confirmation: "Is it true? Is there really a meteor shower? I have never seen a meteor shower." The solar system is filled with dust and solid blocks called meteoroids. These "space scum" break into When the Earth is within its bounds, it will burn due to friction with the atmosphere and become the meteors we see every day. If the Earth encounters a dense group of meteoroids (such as material released by comets), a meteor shower will occur. A meteor shower is a special celestial phenomenon in which groups of meteors appear to come out of a point in the sky and then fall down. This point or small area of ??the sky is called the radiant point of the meteor shower. Radiant point is a perspective effect. The root cause of meteor showers is the breakup of comets. Comets are mainly composed of ice and dust. The ice vaporizes as the comet approaches the sun. The dust particles are ejected from the parent body like water from a fountain and enter the comet's orbit. However, large particles remain around the parent comet to form a dust head; small particles are blown away by the sun's radiation pressure. Comet tail formed. The remaining material remains near the comet's orbit. Yet even small eruption rates. It will also cause a big difference in the revolution period of the particles. Therefore, during the next comet return, the small particles will lag behind the parent body, while the large particles will lead ahead of the parent body. When the Earth passes through the dust tail orbit, there is a chance to see the meteor shower. Meteor shower activity is a comet cycle. Meteor showers are generally believed to be caused by the friction between meteoroids and the Earth's atmosphere (meteoroids can be asteroids in the asteroid belt), and meteor groups are often produced by fragments of comets. Therefore, the orbits of meteor swarms are often related to the orbits of comets. Groups of meteors form a meteor shower. Meteor showers look like shooting stars bursting out from a point in the night sky and falling down. This point or small area of ??the sky is called the radiant point of the meteor shower. Meteor showers are usually named after the constellations in the sky where the shower's radiant point is located, to distinguish meteor showers coming from different directions. ?????¡¡¡¡¡¡ Time has arrived at night before you know it, and Jiahao Wanyu and the others have already made preparations. Because the weather at this time was a bit hot during the day and much cooler at night, they prepared a lot of delicious food and waited for the meteor shower to arrive. At this time, the sky was already full of stars, densely packed. Jiahao looked at She looked at the sky and said, "Wow, Altair and Vega, Libra, and Orion are all out." Upon hearing this, Wanyu quickly asked: "Jiahao, you also know astronomy, you are so powerful, which one is Libra? I am a Libra, you Point it out to me." Jiahao said: "I like to study astronomy very much. I feel that the world is vast and the universe is full of mystery. I especially like to study these. In the summer, I?In that old house of yours, I like to take out the mat, and then lie in the yard and observe these constellations, and occasionally there will be waves passing by. " After a pause, Jiahao pointed to the place full of stars. How does Wanyu know Libra? Jiahao said: "Astronomically speaking, Libra is located in the southeast of Virgo, and it also belongs to the zodiac constellation. According to the astrology of Libra, most people of this constellation have soft eyes, delicate facial features, and the overall appearance gives a harmonious impression; at the same time, they have a quiet personality, love peace and all beautiful and elegant things, and have good understanding. Indecisiveness is their fatal flaw; Libra is an air sign, and its ruling planet is Venus. The stars in Libra have been recognized since ancient times, but Ptolemy did not regard it as an independent constellation. In the Ptolemaic constellation, the star of Libra belongs to the scorpion claw of Scorpio, Libra a is the northern claw of Scorpio, and Libra beta is the southern claw of Scorpio. People regard this group of stars as a steelyard, symbolizing fairness. However, it was not until the time of Caesar in the 1st century AD that the Romans discovered that when the sun moved to this constellation, it was around the autumnal equinox, when day and night equinoxed, so they set it apart independently. Now, due to the precession of the earth, the autumnal equinox has moved to the constellation Virgo in the west. In the current epoch, the Sun travels in Libra from November 1 to November 23 each year. When everyone heard Jiahao¡¯s detailed introduction, Wang Tao, Yun Feifei and Wanyu were all surprised. Moreover, Wanyu¡¯s impression of the plus number was almost crazy. At this time, Yun Feifei asked: "Well, Jiahao, I belong to Orion. Where do you think Orion is? I really want to know where my lovely Orion is. I heard that Orion is the most gorgeous, right? I found out tonight We are the happiest people in the world. Jiahao, where is Orion?" (To be continued, please search Piaotian Literature for better and faster updates!