On February 17, 2223, the day after Ji Xiaotong and Yi Qi reported, Xinyuan left the solar system.

The running-in between teams cannot be completed in one or two days. Both of them must be familiar with Ye Fei's command style and the various habits of their teammates. The best way to run-in is to perform various tasks and gradually cultivate tacit understanding between teammates.

Therefore, Ye Fei arranged the fleet's patrol and repair tasks to Xinyuan to run-in the team.

Although the army is named after the solar system, most of the warships in the fleet have been staying at the base of the solar system, it does not mean that the army's warships only operate in the shell of the egg-sized shell of the solar system. In fact, the army's farthest control range is about fifty light years.

The farthest control range is also called the early warning range. In essence, the farthest defense depth of the Solar System Army is. Any stars within this range are located near the stars. Once a fleet of unknown origin or large groups of cosmic creatures flew to the solar system, the satellite will immediately send an alarm to the group army base and promptly remind the fleet to respond.

The effective control range of the second level is about thirty lights, that is, the farthest interception distance after the fleet takes the initiative to attack.

Finally, there is the core control area with a radius of five light years, which means that the fleet can reach any coordinates in this range in a short time and quickly enter the battle.

In order to strengthen the control of the core area, the fleet has installed astronomical early warning satellites within five light years centered on the solar system, forming a huge early warning satellite network to ensure that any superluminal aircraft enters this range, the space fluctuations caused by scattered early warning satellites will be discovered within one hour.

As for the solar system itself, there is no need to say. If the peripheral warning, mid-term interception and core confrontation cannot withstand the enemy's surprise attack, then it will be meaningless whether the solar system is defended or not.

Such a defense level was established after the solar system was attacked by the Shang race, in order to minimize it as much as possible and even prevent the solar system from being affected by war again.

The interstellar war between the two civilizations can only be described as the collapse of the sky and the earth. There are countless planets that humans have destroyed in foreign wars. However, the earth was exposed to the Atlantis tens of thousands of years ago, so it was impossible to conceal the location of the solar system.

The Asians have no intention of helping humans keep secrets at all. Nowadays, many extraterrestrial civilizations are eyeing the solar system.

The solar system's defense of the earth is the cradle of human beings and has a special status in the hearts of all people on earth. Even in order to take care of the feelings of the people, the military will never give up on the solar system easily.

As the saying goes, if you are not afraid of thieves, you are afraid of thieves thinking about it. Just hiding in the solar system and waiting for the enemy to come to the door will not meet the overall strategy of the military's attack as the defense and active defense, nor will it meet the actual needs of fleet defense operations.

Only by blocking invading enemies with a large strategic depth can we maximize the safety of the solar system, especially the earth.

In fact, everyone knows that the invading technological civilization fleet is extremely unlikely to stay in a certain galaxy along the way. The biggest possibility is to fly directly to the solar system, which directly prevents any early warning satellites along the way from getting any information.

The outer early warning satellites are at most to warn cosmic creatures. The core control area that can truly play a warning role is only five light-years-old.

In addition to the solar system, Blue Light Star, Base Star and Yunzhou Star have also launched early warning satellite arrangements within a range of 50 light years, but this work has not been carried out for a long time, and now the satellite arrangements in the core control area will be completed.

The mission of Xinyuan is to arrange early warning satellites in the direction of Gemini.

It only took one day.

The battleship escaped from super-light speed near Beihe San, and Xia Zhuoyan quickly pointed the lens of the optical system at Beihe San.

Beihe San is Gemini β star, which represents the star on the head of the twins' younger brother on the left side.

Ji Xiaotong stared at the stars on the screen like a curious baby and said, "This is Beihe San? Didn't it say it is the seventeenth bright star in the whole day? Why doesn't it seem that the sun is bright?" After that, he turned his inquiry eyes to Yi Qi.

Those who can drive warships are half astronomers, so she is definitely right to ask this question.

However, Yi Qi just glanced at him indifferently and refused to say a word.

Although there is a reason for this, he heard so much yesterday. Yi Qi is still feeling awkward. How could he give him a good look?

Ji Xiaotong quickly turned his inquiring eyes to others in order to hide his embarrassment.

The undercurrents between the two newcomers made Ruan Peng and Xia Zhuoyan look at each other and smile. Xia Zhuoyan took the initiative to help Ji Xiaotong rescue Ji: "Beihe San is a red giant with a surface temperature much lower than the sun, but the diameter of Beihe San is more than 11 million kilometers, which is more than eight times that of the sun. If Beihe San is compared to a watermelon, the sun is at most a larger orange, with a much different surface area, so its luminosity is more than 30 times that of the sun. Unfortunately, we cannot bring the sun over and place it next to Beihe San, otherwise it will be more intuitive."

Yi Qi looked at Xia Zhuoyan, who was still unfamiliar with a little surprise. She didn't expect that she was so familiar with Beihe San, but she only thought that Xia Zhuoyan was interested in Beihe San and knew so much.

"So that's it." Ji Xiaotong looked like he suddenly realized, "Beihe San is a red giant. It is so close to the solar system. What should I do if it explodes one day?"

Ji Xiaotong is actually not a person who loves to talk, but a newcomer needs to communicate more when integrating into the new group.

"No big problem." Ye Fei suddenly spoke, "Beihe San is a young red giant. It has not recorded helium flashes so far, and its mass is less than twice that of the sun, and it does not reach the bottom limit of eight times the mass required for supernova explosions, so the possibility of an unexpected explosion is very low, and it is relatively likely to directly become a white dwarf."

After being appointed as the commander of the Solar System Army, Ye Fei began to care about the situation of the stars near the solar system. He would definitely not be able to say this a few years ago.

"So that's the case. I thought red superstars could become supernovas." Ji Xiaotong looked shy.

"It's okay, everyone knows that the commando does not teach astronomy but only learn geography." Ye Fei said with a smile, "You have also seen that there are only a few people on Xinyuan. It is unlikely that they will be able to replenish their manpower in a short period of time. Although you are a fire control officer, it is best to learn more about astronomy knowledge. The more knowledge you master, the more positions you can adapt to, and maybe you will use it one day."

"Yes, I remember." Ji Xiaotong solemnly agreed.r1152
Chapter completed!