Noodle Man, Second Alliance, Space Force Information Department

Detection Team 16 work area.

"Report team leader, we have just discovered an asteroid that is not in the asteroid sequence, it is 2 million kilometers away from the direction of Toad. Moreover, the asteroid is heading towards Noodle Star at a speed of 107,000 kilometers per hour, and is expected to slide 800 kilometers away from Noodle Star in nine days. ”

"Is it possible to reveal specific information about the star?"

"Sorry, due to the use of an infrared survey telescope, it will take a few days for the specific report to come out."

"However, we found that the surface temperature was a bit abnormal, and based on the infrared spectrogram we had just collected, it was found to be facing Mars (this Mars is not the other Mars, so it's easy to guess what it is. The temperature in the direction is only 280K, which is seriously out of step with common sense. Under normal conditions, the temperature should reach 450 K. The reason for this phenomenon is either the problem of its surface material, or it has undergone a very short heating process, from 100 or even tens of K to 280K ......"

"Be sure to keep watching."

On that strange asteroid, 2 million kilometers away from Noodle Star, Han Qiao is gushing.

"After a simple gravitational wave and radio scan, we found that there was only one star in the planetary system, and there was no companion star, and we named this star the Hope Star, symbolizing the way out for our remnants of humanity. Like the Sun, this star is a yellow dwarf with a spectral type of G2V. Its mass is 0.95 times that of the Sun, and its average surface temperature is about 5835 K. The apparent magnitude is -26.69 and the absolute magnitude is 4.85. The distance from this place is 139 million kilometers, which means that the 1 AU of this civilization is 010 million kilometers smaller than ours. ”

"There are seven planets in this planetary system, four of which are rocky, and we named them Hope A, Hope B, Hope C, and Hope D from the inside out. There are three more gas planets, named Hope E, Hope F, and Hope G from the inside out. Of these, Hope F is the largest, with a mass about 1.8 times that of Jupiter. ”

"Next, let's focus on this hope D, which is the home planet of that strange civilization."

As he spoke, Han Qiao slowly stood up, and said with a slight swing of his right hand:

"The planet has a mass of about 0.9 times that of the Earth, a radius of about 6,200 kilometers, and an average density of slightly less than that of the Earth. The orbital period is about 354 days, which means that the length of the year is 11 days less than that of the Earth. The rotation period is about 20 hours, which means that the length of a day is only five-sixths of that of the Earth. The shaft tilt is about 21 degrees. It has two satellites, one at a distance of 400,000 kilometers and one at a distance of 500,000 kilometers, and the mass of the two satellites is similar, almost one-ninth of that of the Moon. ”

Speaking, whether it is a human or a robot, a picture of the Mid-Autumn Festival and two moons has appeared in their minds, and there are two bright moons in a clear night sky, one large and one small, so unholy.

"On the surface, the star's four continents divide up about 36% of the area, and the rest is occupied by the four oceans. However, the north and south poles are basically oceans, and there is no land, so we named them the Arctic Ocean and the Southern Ocean. The main land mass is concentrated in the tropical and temperate zones. Among them, there are two continents in the eastern and western hemispheres, both of which are close to each other like lovers, and between these two couples are two large oceans (the planet is spherical, one ocean in the east and one ocean in the west), which are called the eastern ocean and the western ocean. However, there is a high degree of symmetry in general, and it is presumably that the four continents were brought together a few years ago, only to be separated by geological movements. ”

"Interestingly, these four continents occupy the northeast, southeast, northwest, and southwest directions of the star respectively, so we named these four continents Northeast Continent, Southeast Continent, Northwest Continent, and Southwest Continent."

"Although it has not been sampled and tested, we have analyzed that the atmosphere of the star is 0.9 times thicker than that of Earth, with carbon dioxide accounting for about 0.16% of the atmosphere, sulfur dioxide accounting for 0.09%, oxygen accounting for 29%, and the rest is basically nitrogen. Of course, the greenhouse effect is much worse on this planet than on Earth, and acid rain is very common. Its ozone layer is so thin that it is almost impossible to observe, and its ionosphere is also disturbed, so the planet is more affected by cosmic rays, ultraviolet rays, X-rays, and gamma rays from stars. This is clearly not a place to nurture beauty. Moreover, the living conditions of this civilization are likely to be very poor, and the people's living standards are likely to be seriously inconsistent with the scientific and technological level of civilization. ”

"However, the planet's population is extremely unevenly distributed, and within three hours of our transfer by the rift in space, we carefully looked at the number of lights on its side facing away from the star, and found that the density varied greatly, with some places being extremely bright and others dim. So we can infer that the civilization is very different from each other, the gap between the rich and the poor is very large, and the civilization may not even be a unified community of civilizations. ”

“......”

"In addition, the asteroid we are on is running towards the planet at a speed of 107,910 kilometers per hour, and will glide 801.9 kilometers above the northern and eastern hemispheres of the star in 185.3 hours, and then fly towards the star of hope, and will probably plunge headlong into the plasma balloon, give us a good bath, and experience the heat pleasure of hydrogen fusion."

As he spoke, many people smiled slightly, and the solemn atmosphere in the conference room had been swept away.

“......”

After Han Qiao finished speaking, the entire conference room was filled with an atmosphere of curiosity, several people or robots were making eye contact, and some even whispered discussions.

Liu Wei also smiled slightly, obviously everyone had quickly walked out of the panic situation facing the unknown, gradually found a direction, and worked hard to explore forward.

It's a good atmosphere.

Suddenly, Hans stood up and reported, "I have an idea."

He then circled the planet on the hologram and said, "We can estimate the technological level of this civilization, and thus speculate on its detection level." There is no reason why a civilization with a spaceport and a satellite base does not have a complete survey database, let alone the ability to detect the surrounding area in real time, so I think we may have already been discovered. ”

"So we have to take quick steps to hide ourselves and come up with a complete plan within nine days to react quickly, otherwise we're still very reactive."

The atmosphere quickly became solemn, and it contained the elites' reflections on the new situation and new measures, serious but not nervous.

"I'll start with the dilemma we face."

"First of all, there is the issue of fuel, the previous overload of the Yuantu lost a lot of fuel, but now the entire research institute only has enough fuel for it to reach a cruising speed of 15,000 kilometers per second ten times, that is, these fusion fuels can only be used for the Yuanhang ten times of sharp acceleration and deceleration. Of course, our research institute is mainly for exploration, and it is not surprising that there is not enough fuel in stock. ”

As he spoke, Hans glanced at Hancho.

"In addition, we will face the continuous detection of various electromagnetic bands of the civilization, this asteroid will not give us much shelter, we must react quickly."

"So here I mainly put forward some premature views on this issue, I hope you can correct it."

As he spoke, he debugged the hologram and showed everyone a full picture of the asteroid.

"There are simple manufacturing capabilities in the institute, and we also have the manufacturing methods of modular manufacturing and material recombination, so we can quickly build a batch of optical stealth systems, maybe not enough to make the entire asteroid invisible, but all we have to do is hide the man-made structures on it."