Chapter 1451 Choice
Standing on the podium, Zhao Dahe took a deep breath; looking at the expectant eyes on the scene, he faintly felt heavy pressure.
Exploring the satellite system will carry the future hope of Dayang Group and determine the future development direction. This matter cannot be sloppy. This may bet on all the accumulation of Dayang Group, as well as the "national fortune" of the next thirty to fifty years, or even a hundred years.
Although it's a little strange for a group to say "National Fortune", that's pretty much what it means.
And now the heavy task of exploring the satellite system falls on Zhao Dahe.
Zhao Dahe slowly inserted the mobile hard disk into the computer on the podium, and then turned on the big screen. A moment later, in the conference hall, a hovering galaxy appeared on the large screen with a total area of 150 square meters.
The galaxy has four spiral arms; however, the ends of the arms diverge and begin to blur, eventually forming a faint ring around the galaxy's outskirts.
On the periphery of the galaxy, there is a "dust ring" formed by sparse nebulae and sporadic small stars. The thickness of this dust ring is almost a quarter of the diameter of the galaxy's main body, and it surrounds the entire galaxy like a protective ring.
If the galaxy is flat, the dust circle is basically spherical, which "protects" the entire galaxy.
In the periphery not far from the galaxy, outside the 'dust circle', there are more than a dozen relatively prominent small galaxies or star clusters, and there are also many scattered light spots.
In fact, there are many star clusters in the "dust circle", but they are too small.
Seeing this star map, everyone's eyes seemed to brighten up.
Zhao Dahe said: "What you are seeing now is the picture of the Great Zhou Galaxy, which is the latest. Of course, although it is the latest, we cannot be sure that our Great Zhou Galaxy has this shape.
We are inside the circumstellar galaxy, and it is not easy to recognize the true shape of the circumstellar galaxy. So many of them are deduced by computer.
We also borrowed pictures taken from the world of Tian Yao, but because the distance is too far, and it is impossible to arrange a large-scale astronomical observation system in the world of Tian Yao, the pictures taken are relatively blurred. And the pictures we took from the Sky Demon World are side views, not front views.
After continuous corrections in the later period, the current picture was obtained.
Quite directly, one-third of the area is directly generated by the computer, not a real picture. Located on the back of the galaxy core, we have not observed detailed content so far.
Let me briefly talk about the general situation of the big galaxy next week.
The data we have detected so far is: the diameter of the Zhoutian large galaxy is about 160,000 to 200,000 light-years, and it is flat as a whole.
If calculated according to the gravitational range of the Zhoutian galaxy, the maximum range is 20 light-years in diameter. Beyond this range, the star will break away from gravity and drift among the stars.
Just as there is an exosphere in the planet's atmosphere, this is also the exosphere of the galaxy.
According to this calculation, the thickness of the Zhoutian large galaxy is about 30,000 light-years.
The periphery of this exhalation layer is the 'dust circle' that everyone sees. Here, satellite and large galaxies compete for each other's stars, interstellar dust, and more.
Another calculation method is to calculate according to the maximum range of the spiral arm. Calculated in this way, the diameter is 160,000 light-years. Calculated in this way, the thickness of the galaxy is about 7,000 light-years.
In addition, in the Zhoutian galaxy, the area covered by the 'Zhoutian array' should be about 80,000 light-years away. The scope of Sanyuan, that is, the core part of the Zhoutian galaxy, is about 20,000 light-years away. Miyaki looks really small, accounting for only 6.3% of the total volume of the entire galaxy, but its mass is 40% of the entire galaxy! "
Zhang Hao asked: "What's the significance of the two calculation methods?"
"The first calculation method is in the academic sense, which is beneficial to our understanding of the universe. The second is in the practical sense. In practical applications, it is good to follow the second calculation method."
Zhang Hao nodded.
Zhao Dahe continued: "Now let's talk about the focus of this discussion, the satellite system.
At present, we have discovered large and small satellite systems, star clusters, etc. around the galaxy, and there are a total of 12 that are qualified to be recorded separately. We rank them in order of discovery.
However, although they are qualified to record and observe independently, not all satellite systems or star clusters have the potential to develop into new bases of the Dayang Group. For example, the No. 12 star cluster we discovered recently can only barely be called a star cluster.
The star cluster No. 12 is about 30 light-years away, but there are less than 400 stars, and most of them are small stars, mainly red dwarfs. The cluster doesn't even have a black hole of its own. Its central position is only a red giant star.
The stars are small and there are not many planets. Basic materials are severely lacking.
Therefore, after preliminary screening and rigorous discussion, the astronomical research department initially selected three satellite systems, 1, 2, and 5. Today will be the final discussion on the three satellite systems. Let me briefly introduce these three satellite systems. "
"No. 1, we named it 'Pisces Nebula', and used 'nebula' to distinguish it from large galaxies.
The Pisces Nebula is a whole small galaxy and the second largest satellite galaxy we've found. According to our preliminary research, it is considered to be a complete independent galaxy attracted by the large Zhoutian galaxy.
At present, the Pisces Nebula is falling towards the large galaxy at a speed of 117 kilometers per second. It is estimated that after 1.2 billion years, it will be completely captured by the Zhoutian galaxy and integrated into the Zhoutian galaxy. Of course we can ignore it for such a long time.
The Pisces Nebula has two spiral arms, which looks like a Pisces playing with a bead; its core, which is the "bead" of the "Pisces playing with a bead", is a massive black hole, which is initially estimated to be 1.3 million times stronger than the Tianyuan star.
The Pisces Nebula is about 7600 light-years in diameter and contains about 27 billion stars. It is about 155,000 light-years away from the core of the Zhou Tian large galaxy, and about 165,000 light-years away from us. Because of the interstellar movement, the distance from Tianyuan star is close to 22 kilometers per second.
The Pisces Nebula has the greatest development potential. "
"On the 2nd, we named it the 'Oasis Nebula'. The Oasis Nebula is a chaotic mass and the nebula is dense. We even observed star formation in the nebula.
But the star density of the Oasis Nebula is extremely high; the reason why it is named "Oasis Nebula" is also because the energy density is high here, and the overall luster under the telescope appears green. Calculated according to the energy level, it is much higher than the red and yellow levels.
The energy levels are the rainbow colors of red, orange, yellow, green, blue, blue, and purple. We use this to mark the energy distribution of the universe.
We speculate that the Oasis Nebula should be a galaxy that swallowed half of the Zhoutian galaxy, and the Zhoutian galaxy swallowed its periphery, leaving a galaxy core.
The diameter of the Oasis Nebula is 3,700 light-years, but the mass of its core black hole is estimated to be 2.2 million times that of the Tianyuan star. The number of stars in the Oasis Nebula is estimated at 15 billion. But because the nebula is relatively dense, it can't be seen clearly.
Compared with the Pisces Nebula, this place seems to have more potential for development. But it's a little farther away from us.
The Oasis Nebula is about 170,000 light-years away from the core of the Zhoutian galaxy, and 157,000 light-years away from us; because of the interstellar motion, the distance from the Tianyuan star is 27 kilometers away every second.
The orbit of the Oasis Nebula is stable, and it has formed a perfect balance with the Zhoutian galaxy. "
"Then there is No. 5, we named it 'Carp Nebula'. This satellite system is in the front, equivalent to the position of the head of a fish. It is a relatively standard vortex system, but there is no distinction between the spiral arms.
But it dragged a long tail like a comet. In fact, the Carp Nebula is being torn apart and devoured by the large Zhou Tian galaxy.
Among the three options, the Carp Nebula is the smallest, with a main body diameter of only 2,400 light-years and an estimated number of stars of about 5 billion. Its core black hole is estimated to be about 900,000 times that of the Tianyuan star.
The carp nebula is the closest to the core of the Zhoutian galaxy, only 120,000 light-years away; the distance to Tianyuan star is less than 80,000 light-years. Seems to be the easiest satellite system to get to.
Due to interstellar motion, the Tianyuan star is "catching up" with the Carp Nebula, approaching 31 kilometers per second.
However, in order to reach the Carp Nebula, one needs to pass through the Tianshe constellation, which is the location of the Red River civilization and the military's separatist regime.
According to the relationship between the Tianyuan constellation and the gravitational string, we may need to borrow the gravitational string of the Tianshe constellation. The constellation Tianshe is also an elongated constellation, and the gravitational string should be easy to find.
That's all for a brief introduction. If you have any questions, just ask. "
After Zhao Dahe's introduction, everyone became lively. Bai Yutang was the first to speak: "I have a question, 12 satellite systems or star clusters have been discovered so far, can you briefly introduce the rest, why did you choose these three in the primary election?
I remember that there seems to be a "Satellite System No. 4", named "Sombrero Nebula", which seems to have a diameter of more than 12,000 light-years, and it is the largest satellite system discovered. Why wasn't it included in the selection? "
Zhao Dahe smiled, and pointed to the star map on the screen behind him, "The Straw Hat Nebula is here, located at the back of the galaxy, 190,000 light-years away from the core of the Zhoutian galaxy, but 260,000 light-years away from us. In the middle, it is necessary to cross the core of the large Zhoutian galaxy. It is unrealistic to reach the Sombrero Nebula.
Besides, the Pisces Nebula is big enough.
The remaining satellite systems or star clusters also have similar problems, or the star clusters are too small, or the distance is too far away. "
Speaking of which, Zhao Dahe introduced the rest of the satellite systems and star clusters one by one, most of them are like the No. 12 star cluster, and the researchers didn't bother to name them, just give them a number.
After the explanation, everyone has to agree that the three satellite systems 1, 2, and 5 have the most potential among them.
But which one to be specific is up for debate.
One thing, the senior management of the Dayang Group understands very well: with the current technical situation and background of the Dayang Group, they can only organize a fleet and explore one galaxy. Once back and forth, it will take thirty years at the earliest. With a little delay, it will be fifty years. This still takes into account the velocity of the gravitational string.
Such a fleet must have the ability to develop and build galaxies, rather than simply having three or five spaceships to go around. According to preliminary estimates, at least 3,000 spaceships need to be dispatched.
But now the Blue Star Group is facing a big war, and various resources are beginning to be strained; after 30 to 50 years, a war may break out at the rear world gate at any time, and it will be a war between two worlds.
Therefore, if you think about it casually, you can understand that Dayang Group will only have one chance to explore the satellite system in the foreseeable hundred years!
Once it fails the first time, it will be difficult in the future. In particular, it is not known whether the rest of the members of the Blue Star Group have other thoughts.
And judging from the current development speed of Dayang Group, in another 30 years, Dayang Group's development space will reach its limit. The Dayang Group urgently needs a piece of territory that is completely its own!
The entire Dayang Group is under enormous pressure, but even if the pressure is doubled, it still has to carry forward. The huge pressure of survival makes Dayang Group not only unable to slow down, but to continue to accelerate.
To ease the pressure within the group, other methods must be adopted. For example, marriage, to celebrate happiness through marriage. Or explore outer space, so that the pressure in the group has room to vent.
In short, under such a premise, the executives of Dayang Group started discussions on the current three satellite systems. But gradually, everyone focused their discussions on the No. 1 satellite system and the No. 2 satellite system. It's just that during this process, Bai Yutang never spoke.
The No. 1 satellite system, that is, the Pisces Nebula, seems to have the most potential, but the distance is a bit far; it is 165,000 light-years away from Tianyuan Star.
The No. 2 satellite system, that is, the Oasis Nebula, has great potential, and the distance is much closer. The distance from Tianyuan Star is 157,000 light-years; but the distance between this galaxy and Tianyuan Star is increasing, 27 per second. kilometers, then 850 to 860 million kilometers can be opened in a year.
This distance... may be negligible. Today's spacecraft often travel thousands of light-years per month, and drizzle hundreds of millions of kilometers. Even if calculated on the basis of 860 million kilometers per year, it will take about 11,000 years to widen the distance of one light-year.
Just wanting to choose the Oasis Nebula is not so easy. Because there are dense nebulae in the Oasis Nebula!
It is conceivable that if a planet is covered in heavy fog all year round, how the industrial development and life of such a planet will be affected. And that's the case with the Oasis Nebula.
In addition, according to observations with astronomical telescopes, through occultation observations, it is suspected that there are a large number of super-large starry sky behemoths in the Oasis Nebula.
For this, Zhao Dahe mainly explained: "The so-called occultation observation is very simple. If a person walks in front of the light, it will cover the light and make the light dim. Similarly, if a planet passes in front of the star, it will also be due to the occultation. Stellar light, which makes the star's light slightly change.
This change may be one in 10,000 or one in 100,000, but through the high-precision telescope matrix, we can find faint changes 100,000 light-years away.
The Oasis Nebula is a bit far away, but after technical adjustments, it is possible to barely observe the occultations of some peripheral blue giant stars. But we found that the stars here are changing rapidly and irregularly. Whether it is the frequency, or the intensity of the light that is covered.
At first we thought it was a spaceship. But it was quickly ruled out. Because the course of the spacecraft is generally relatively stable.
Everyone should know that the spaceship is very fast in the starry sky, and the course of the spaceship is fixed for safety. Even the small countries in the big world of Zhou Tian will have such an arrangement.
Finally, after comprehensive consideration and referring to the opinions of the staff department, we think it is a starry sky behemoth. And in the entire Oasis Nebula, there are probably not a few such starry sky behemoths. These starry sky behemoths that have developed freely for an unknown number of years may not be something we can deal with now.
After all, we speculated that the Oasis Nebula is likely to be the remaining core of a large galaxy. The original size of this large galaxy is estimated to be one-fourth to one-third the size of the current Zhoutian large galaxy. It is completely understandable that a starry sky behemoth is born in such a place. "
After hearing this, Zhang Hao couldn't help asking: "How long have you been observing this situation, how sure are you?"
"For this phenomenon, we have been observing it for half a year, and we have used almost all the telescopes to form a super array for observation.
This super array of telescopes forms a super telescope with a virtual diameter of 120,000 kilometers, and the observation accuracy... should be over 90%. "
Virtual telescope is a telescope technology of Dayang Group. By arranging a large number of telescopes into an array, all the telescopes are linked by computer to form a bee-like structure. It's just that the bee's eye is a bit big, and it can reach 120,000 kilometers.
Through such technology, Dayang Group's current telescope technology can be brought to the extreme, and the sensitivity of a single telescope can be a million times greater. Of course, costs have gone up as well.
But through such telescope technology, Dayang Group has also benefited a lot.
Zhang Hao pondered a little. From the current point of view, the Oasis Nebula is undoubtedly the most suitable. But if there are really a large number of starry sky behemoths here, it's another matter.
After pondering for a while, Zhang Hao suddenly said, "Is it possible to do this? We can send a fleet to the Pisces Nebula, but make a detour in the middle and pass the Oasis Nebula."
"I'm afraid this won't work. The distance between the two nebulae is far away."
Zhang Hao said again: "What if we just try to get as close to the Oasis Nebula as possible and observe it at a close distance?"
Zhao Dahe pondered for a while, looked at the star map, and said: "If you want to not affect the journey to the Pisces Nebula, you can get closer to 50,000 light-years at most. Then you have to turn around and go to the Pisces Nebula.
However, if we can advance 50,000 light-years, our observations may be twice as clear. "
But at this moment, Bai Yutang, who had been silent all this time, spoke up, "I think it might be better to explore the Carp Nebula."
"Oh?" Everyone focused their attention on Bai Yutang.
But Bai Yutang stood up, walked to the podium, and walked to the front of the star map. His fingers slid across the Tianshe constellation, "Everyone, the Tianshe constellation is basically independent for the time being, and is no longer controlled by the royal family of the Honghe Empire. Then controlled by the Yujing Empire. There is even intelligence that the Tianshe Constellation is colluding with the 'Tianji Empire'.
The Tianji Empire is located in the east of the Yujing Empire. This kind of interstellar power has been a feud for tens of thousands of years.
But now that the Blue Star Group is facing a big war, the Yujing Empire may not be able to take care of this. Then we may have the opportunity to buy the Tianshe Constellation from the Yujing Empire and the Tianshe Constellation from the Royal Family of the Honghe Empire.
The Tianshe constellation is almost located on the edge of the Zhoutian galaxy and the Zhoutian formation, so it has little meaning to the Yujing Empire. The Red River Empire is also beyond reach. So I think no matter Yujing Empire or Honghe Empire, they will agree.
The Tianshe Constellation is just the military separatist regime of the Red River Civilization, but such a separatist regime is not popular among the people. Moreover, the development time of Tianshe constellation is short. There is almost no background. After we have obtained the nominal ownership, we can completely attack here with a strong force! "
"There is one more important thing." As he spoke, Bai Yutang slid his fingers across the Tianshe constellation, "The Tianshe constellation is slender, let's see if it looks like a guide rail, a guide rail of gravitational strings. If the Tianshe constellation can be included in our In the sphere of influence of the Tianshe constellation, we can use the gravitational string of the Tianshe constellation to 'launch' the fleet, and reach the Carp Nebula faster.
As for the smallness of the Carp Nebula, don't worry about it for a short time. Here is enough to support Dayang Group's recent needs. "
Bai Yutang's suggestion immediately aroused great interest from everyone. Yes, the Dayang Group and the Tianyuanxing civilization have now grown into a hegemony, and they no longer need to be as cautious as they used to be.
Previously, Gao Dashang also obtained the small star cluster 'Jinghui 16 Stars' from the royal family and completed the occupation. So it seems to be nothing to get involved in the Tianshe constellation now.
Another point is also very important, and everyone has actually discussed it before, which is the fuel of the spacecraft. At present, the nuclear fuel of the spacecraft can travel up to tens of thousands of light years at a time. If you want to span a starry sky of 100,000 light-years, even if you add storage space technology, you need to replenish fuel at least twice in the middle.
If you want to go to the satellite system, you must consider the issue of supply stations. Therefore, the meaning of Tianshe constellation has added another layer virtually.
(5,500-word chapter, it’s been a long time since I’ve been so happy, so I won’t separate it.)