Battleships need fewer and fewer manpower, and one specialization and multiple abilities are the most basic requirements.

Ji Xiaotong carefully looked on the screen and looked for it, and asked curiously again, "Chief, I remember where I saw it, saying that Beihe San is a Liuhe star, why haven't I seen a companion star?" ”

"I've heard that too, but the truth is right in front of your eyes. Ye Fei smiled slightly, "Okay, let's talk about these theoretical things when we have time to go back, Xiao Xia, have you come out of the count?" Prepare for the placement of early warning satellites. ”

At the present stage, the military uses reconnaissance satellites the most, and reconnaissance satellites are only used on the battlefield, which are characterized by a short period of use and high reconnaissance accuracy, so they can use the energy built into the satellite, reduce the size of the satellite as much as possible within a reasonable range, and disguise the satellite as various inconspicuous celestial bodies.

Long-range early warning satellites are different from reconnaissance satellites, they must work for a long time in unattended conditions, so the volume of early warning satellites is much larger than reconnaissance satellites, in order to ensure that satellites can operate for a long time, in addition to built-in energy, they must also use solar energy as much as possible to supplement consumption, which is also the main reason why long-range early warning satellites are placed in the galaxy.

In order not to appear too obtrusive, the early warning satellite also needs to be camouflaged, because the surface of the satellite is covered with solar panels, so the camouflage effect is very poor, and finally the satellite is disguised as a small glass object made of high-temperature sintering, which can be regarded as solving this problem.

However, a discerning person will know that there must be something wrong with this thing, but fortunately, the military does not care about this, even if the early warning satellite is destroyed. The military can also determine which direction is wrong through the loss of contact with the Guò satellite, and can also achieve the effect of early warning.

"The number jù has come out, pillow!" Xia Zhuoyan shouted to Ji Xiaotong with a little jokingness and passed the number to him.

Ji Xiaotong competently received the number jù and calculated it accordingly, and said a few seconds later: "The launch angle velocity has been calculated!" After speaking, I will share the number jù with everyone.

Ye Fei took a general look at the number after receiving it and said, "Pay attention to the giant planets around Beihe San, don't let the satellites be caught by his gravity." ”

"Yes!" Ji Xiaotong immediately revised the satellite placement plan, "Chief, I want to put the satellite next to the giant planet and use the giant planet as a shield for the satellite. ”

"Yes, you can discuss it with Yi Qi." Ye Fei said.

Yi Qi voted without thinking about it.

The giant planet is more than twice as massive as Jupiter. Originally, the role in this galaxy was likely similar to that of Jupiter. If this was once a galaxy that approximates the solar system. After Beihe II became a red giant, it must have swallowed several terrestrial planets that were relatively close.

If the early warning satellite is placed in orbit around Beihe-3, once there is a helium flash, the satellite will inevitably be destroyed.

Put it next to the giant planet. Not only can the giant planet itself be used to resist the attack of small celestial bodies. The magnetic field of the giant planet can also effectively provide a certain range of protection for early warning satellites. Defend against streams of charged particles from red giants and violent solar winds.

Yi Qi discussed a few words with Ji Xiaotong coldly, and determined the detailed number of satellites to be released, after Ye Fei's consent. The battleship flew near the giant planet, and after adjusting the angle of the battleship, Ji Xiaotong used a gravity cannon to launch an early warning satellite.

The battleship then flew some distance, repeating the same procedure twice.

The environment here is really reassuring, so it's better to put two more satellites to be safe.

The battleship stayed for a while, waited for all three satellites to start normally, and sent a signal that it was working normally, before leaving Beihe 3 and flying to the next target.

On February 19, 2223, the warship broke away from the speed of light near Beihe II, fifty light-years from Earth.

As soon as the battleship stabilized, Ye Fei smiled and teased: "Okay, in front is Beihe 2, the legendary Liuhe Star, and it is also the farthest end of our mission, the situation in this place is even more complicated than Beihe 3, and the satellite is not so easy to put away...... Yi Qi, tell me what you think. ”

"Yes!" Yi Qi thought that Ye Fei was testing himself, so he immediately replied: "Beihe San has two pairs of spectroscopic binary stars and one pair of eclipse binary stars, and the physical binary stars formed by the two pairs of spectroscopic binary stars orbit for a period of 470 years. I thought it would be a good idea to place a satellite at the Lagrange point between the binary stars, but the distance from the star was too far for the solar panels to get enough light, so my idea was to place a satellite on the periphery of each of the two pairs, preferably one near the eclipse binary. ”

Yi Qi said something professional, but except for Ji Xiaotong, who didn't understand it, several other people, including Ye Fei, all understood.

In ancient times, which lacked faster-than-light flight technology, neither naked eye photography nor telescopes could distinguish between the two stars, and could only be indirectly analyzed and judged by the changes in the spectral position of the celestial body.

An eclipse binary star is a star, where the orbital plane of the two stars is parallel to the line of sight, so that when the stars change positions each other, there will be periodic changes in luminosity.

Both stars move around a common center of mass, so it is enough to place the two stars directly in orbit around the binary, regardless of whether they are spectroscopic or eclipse binary.

The gravitational equilibrium point of the binary star is actually a very good place, but the distance between the pairs of binary stars in Beihe II is too close, and if you put the satellite there, I am afraid that before the satellite starts working, it will be burned out directly by the high temperature.

Even if the satellite can withstand the high temperature from the star, the majestic body of the two stars and the chaotic electromagnetic environment near the star will have multiple optical and other effects on the satellite's detection equipment, making the originally sensitive satellite directly blind and deaf.

Fortunately, the distance between several pairs of binary stars is not close, although there are six stars in the whole galaxy, but the objects in the close range of each pair of binary stars are relatively stable, and the galaxy is not as chaotic as imagined.

"Let's do it." Ye Fei nodded and agreed with Yi Qi's plan.

Yi Qi, who was relaxed on the surface and nervous in his heart, quietly breathed a sigh of relief, although the difficulty of the problem itself was not high, but the key was to deal with it freely.

After a small test, Yi Qi felt that his appearance was not bad. (To be continued......)