I, a Hundred Billion Boss, Signed in the City for Eight Years!

Ye Xuan's words were a bit confusing to the sisters, and they all looked at Ye Xuan with dazed eyes.

"Little brother, how do you know so much about the stars?"

"That's right, little brother, you all know the companion star of Sirius and the distance, have you learned it?"

"I'm so dumb. It's the first time I know that there are so many things about Xingxing, but I don't usually understand it."

"Me too, I only understand after hearing what my brother said."

Ye Xuan smiled and said with a proud expression:

"I usually watch videos about this, and I remember most of the stars in the sky."

"Really?! Come here, little brother, and help me see what this star is, it's so beautiful!"

The fifth sister, Concubine Ye, heard what Ye Xuan said, showing a surprised expression, holding the astronomical telescope in one hand and beckoning to Ye Xuan with the other, looking like she couldn't wait.

The same is true for the other sisters. As soon as Ye Xuan said this, they all began to gear up, waiting for Ye Xuan to explain it to them.

Ye Xuan didn't care, and walked up leisurely, came to the astronomical telescope, and was picked up by the fifth sister Ye Fei. Looking through the astronomical telescope, he saw a very beautiful star.

After taking a few glances, Ye Xuan jumped down and looked at the fifth sister Ye Fei and explained:

"This star is called Canopus, which is Carinae a. It is about 310 light-years away from the solar system. Bright apparent magnitude -0.72, absolute magnitude -5.53... I won't talk about these data."

"Canopus is the second brightest star in the sky after Sirius."

"In the south, every year on the night of the second month of the lunar calendar, after finding Sirius, which is due south, look down, and you can find it above the horizon."

"Theoretically, people south of 37 degrees north latitude have the opportunity to see it, but the length of time they see it is different. But considering factors such as ground fog and occlusion of the field of view, "really" seeing Canopus is much farther south than 37 degrees north latitude."

"Canopus is a lucky star in the eyes of the ancients. In the east, it is known as the Antarctic fairy. It has a benevolent temperament, and there is also a saying of a longevity star, but it does not mean the owner's lifespan."

When the fifth sister Ye Fei heard the words, she showed a "wow" expression. She raised her head and stared at the shining star in the night sky. .

The other sisters also showed shining eyes, all raised their heads and looked up at the birthday star with a smile on their faces.

Then they rushed to grab the astronomical telescope, then picked up Ye Xuan and placed it in front of the astronomical telescope, and asked Ye Xuan to explain it to them, looking impatient.

"That one is called Nanmen II, which is Centaurus A. It is located in the constellation Centaurus. It is a triple star system and the closest star system to the sun."

"South Gate II has a total apparent magnitude of about -0.27 magnitude, and is customary to be the third brightest star in the sky. South Gate II is also known for being the outermost guide of the Southern Cross. Proxima Centauri is generally considered to be this The member of the star system, which is only 4.24 light-years away from the sun, is the closest star to the sun."

"This star here is Arcturus, also known as Tiandong, and can also be called "Dongxing". It is regarded as the imperial court of the King of Heaven."

"Arcturus is a star in the constellation Boe, the brightest star in the constellation Boe, and the brightest star in the northern night sky. The previously mentioned Sirius and Canopus are the southern stars."

"In late May, follow the curve of a few handles of the Big Dipper and draw a large arc, and you can find a bright orange in the starry sky near the zenith. Bright Star - Big Horn. To the north of the Big Horn are 5 small stars of 2nd and 3rd magnitude, arranged with the Big Horn in the shape of a kite or sail."

"The next one is the constellation that you are very interested in. That's right, it's Vega. I have to say that Fourth Sister has a very accurate eye for the stars. You still found Vega."

"Vega, also known as Vega or Lyra a, is the brightest star in the constellation Lyra, about 25 light-years away from Earth. It is an oblate spherical star with pale pink at the north pole and blue-white at the equator, you see Her name is very beautiful, she is both Zhinu and Tianqin, and her color is also very beautiful."

"Vega is the fifth brightest star in the night sky and the second brightest star in the Northern Hemisphere after Arcturus. Along with Arcturus and Sirius, it is one of the brightest stars near the Sun."

"Okay, the last big sister's star has a lot to say. This star is called Citadel, or Auriga a. It is the brightest star in the constellation Auriga, and the sixth brightest star in the sky, second only to the northern hemisphere. It is the fourth brightest star in the northern sky after Sirius, Arcturus and Vega."

"Its English name is derived from Latin, which means little goat. The Bayer nomenclature designates it as a star, abbreviated as a aurigae, a aur or alpha aur."

"Although it appears to be just a star to the naked eye, it is actually a star system, a pair of binary stars composed of four stars, which is wonderful."

"The two large, bright, g-giant stars of the first pair, each 10 times the diameter of the sun and 2.5 times the mass of the sun, orbit each other in very close orbits."

"The respective names of these two stars are Ceratops aa and Ceratops ab, and they will gradually cool and expand in the future, and evolve into red giants."

"The second pair is about 10,000 AU from the first pair, and both are dim, low-mass, and relatively cool red dwarfs."

"Their names are Ceratops h and Ceratops l, and from c to g and i to k, are other stars in the same field of view, but in fact unrelated. The system of Pentacles is relatively Near Earth, only 42.2 light-years away."

These words directly told the sisters that they were stunned. They all stared at Ye Xuan with a stunned expression. They looked at Ye Xuan as if they were looking at something.

After a long while, he opened his mouth and said in surprise:

"No, little brother, why are you like an encyclopedia, you know all the stars, and you know so much about them, so thorough, my God."

"Brother, how do you know everything? It's like a walking encyclopedia. It's amazing."

"Yes, little brother, I feel that your head is like a computer. You know everything and how you did it. You won't be an unforgettable child prodigy, little brother."

"It's terrifying, little brother, you've all told me that I'm confused. Only then did I know that there are so many stories about Xingxing, so much knowledge, it's terrifying, you have so much knowledge."