Hearing the shouts from far away, Xu Yun's whole body was shocked.
Good guy.
The planet was discovered?
In just one second.
Countless thoughts flashed through Xu Yun's mind:
Could it be a calculation error?
Or is it screening out other unknown asteroids?
For example, one of Eris, Makemake or even Sedna?
still......
Did Gauss and Riemann really discover the unknown ninth planet?
after all......
This has not been discovered in 2000, or it is still a mystery that is a controversial topic...
The only evidence to support the existence of this unknown planet in later generations is to judge based on the motion trajectories of six stars: Sedna, 004vn11, 007tg4, 010gb174, 01vp113, 013rf98, that there may be such a gravitational source in the outer orbit of the solar system.
Because the eccentric orbits of these six planets are extremely outrageous, the theoretical probability of natural formation is only 0.0007%, and there is almost certainly an external influence.
Just like most single dogs are generally left-leaning, this external factor accounts for a large part of the reason.
But on the other hand.
Apart from these orbits, the astronomical community has no other evidence to support the existence of planets.
Therefore, as of the time when Xu Yun traveled through time, there were still many elders who were opposed to this.
Take Kevin Napier of the University of Michigan, Ann Arbor.
This is an elder whose h factor is more than ten points higher than that of Xu Yun's mentor Tian Liangwei. He has done meta-analysis on some other stars and believes that the planet does not actually exist.
"Invincibility starts with sacrificing the ancestor"
There is also astronomer Amanthawler from the University of Regina in Canada, an elder who has gained a lot of status in the astronomical circle based on his ability rather than buffs.
She is also a well-known dissenter.
It's just that compared to these opponents, there are more elders who hold the theory of planetary existence.
At the same time, many people are willing to believe that such a planet exists out of the perspective of exploring the unknown.
Just like eating a dry-pot frog, when you turn over the bottom of the pot at the end of the meal, you always look forward to finding another piece of meat.
The person most likely to decipher the truth in later generations is the Vera Rubin Observatory in Chile. This observatory launched an astronomical observation to explore the planet in 2000, but conservatively it will take ten years before the results will be released.
No way, it’s still the same sentence:
The solar system is simply too big, and the planets themselves do not emit visible light.
Stars are easy to find, but planets are hard to find...
The result was unexpected.
In the winter of 181, Gauss actually discovered that planet?
Think of this.
Xu Yun suddenly couldn't help it any longer, turned around and cast a questioning look at Prince Albert:
"Your Majesty Albert, look..."
Although the royal family represented by Albert belongs to a certain degree of community of interests with the aristocracy, don't forget that it was the same aristocrats who decomposed the royal power in the first place:
The Glorious Revolution broke out in 1688, and the rule of the new bourgeois aristocracy was established.
The United Kingdom has since changed to a constitutional monarchy, and the royal power has been significantly reduced.
Therefore, seeing that the etheric theory that supported the aristocratic system was shattered by Xu Yun, Prince Albert was actually a little happy in his heart.
Some even want to set off firecrackers and add another dish at night...
Now seeing Xu Yun, the 'hero', speaking out, Prince Albert smiled and waved his hand:
"Let's go, let me go and see with you!"
So the group of people left the ether supporters who were still howling and rushed to the analysis machine site.
"Luo Feng!"
As soon as he approached the small shed where the analytical engine was located, Riemann rushed forward excitedly:
"We discovered it, we discovered the planet, now we just need the final re-examination results!
"
Seeing this oil-headed brother with an excited face, Xu Yun's mood also started to stir, and he quickly walked forward:
"Mr. Riemann, can you tell me what the situation is now?"
Riemann nodded heavily and took Xu Yun to the analysis machine:
"First of all, based on the orbital formula calculated by the teacher, we calculated the area where the planet may exist at this time."
"Based on the azimuth angles of southeast, northwest, it should be southwest of our heads at this time."
"Of course, this is just a relative position. In fact, its coordinates are still based on the ecliptic coordinates."
Finished.
Riemann pointed toward the southwest sky.
Xu Yun looked around, and what he saw was...
Total darkness.
This is actually quite normal.
After all, when the weather is clear and the atmospheric light transmittance is very good, the darkest visual magnitude that adults with normal vision can see is around 6.
Except for those with super powers who can be seen in the comment sections of major websites, the farthest planet that ordinary people can see with the naked eye is Uranus.
No matter how far away Neptune and Pluto are, they can only be seen with the help of a telescope.
Pluto is like this, let alone a planet that may exist - assuming this planet does exist, its distance from the sun is about three times that of Pluto.
Then Riemann paused and continued:
"After determining the approximate orientation, the teacher calculated that its orbital inclination is approximately 4.31 degrees, so we excluded the observation records in non-target areas."
"The final observation records used for calculations were 348 in total."
Xu Yun nodded accordingly.
Said above.
Assuming that planet really exists, it must be in an orbit outside the solar system, and its revolution period will be very long.
For example, take Sedna mentioned earlier.
Sedna is about 88 astronomical units from the sun. How long does it take for it to make one revolution?
The answer is year.
That is to say, after Sedna completes the circle, the Supreme Treasure's love for Fairy Zixia has expired, and it still owes more than 1,400 years.
So for Sedna, the planet.
In a few years, on the scale of the universe, they can almost be said to be relatively stationary.
This is also why the astronomical community thinks that the planet may be a black hole the size of an orange - because this thing doesn't move...
Again.
The universe is really too big.
If the sun were reduced to a piece of sand with a diameter of 1 mm, Jupiter would be the size of an egg, and the other planets would not be visible to the naked eye.
The Earth is about 10 centimeters away from the sun, while other celestial bodies such as Pluto are about 4 meters away from the sun.
The area 3 to 3 meters from the sun is the Coinber Belt, which is filled with billions of small icy objects.
More than 10 meters away from the sun is the heliopause, which is like a bubble. This is the farthest point that the solar wind can blow.
The huge range from 00 meters to 10 kilometers from the sun is the Oort Nebula, the real boundary of the solar system.
The complete solar system is a ball with the sun as the center and a radius of more than ten kilometers.
Starting from Uranus, the brilliance of the sun has begun to be beyond reach. From then on, the celestial bodies in the solar system outside have a life-threatening cold:
The atmospheric temperature of Uranus reaches -4C, and Neptune and Pluto can even reach -40C...
Winds with a speed of 100 kilometers per hour rage on Neptune day and night, and Pluto is even filled with methane pebbles...
If there were living things in these places, the warmth of the moonlight on the earth could kill them...
New Horizons, launched in 2006, took 9 years to reach the vicinity of Pluto in 2001 and took the first high-definition photo of Pluto in human history.
At that time, Pluto was approximately 3.9 astronomical units from the sun.
The above is the map of the solar system that most people are familiar with.
Launched in 1977, Voyager 1, currently the farthest man-made object from the Earth, has left the Earth at 141 au..., which is about 1.1 billion kilometers, and will break through the heliosphere and enter the interstellar medium.
Some trouble-making media often like to hype that travelers have "left the solar system", which is actually a play on words.
It's like driving out of the city's freeway entrance, but still far from driving out of the city's jurisdiction.
So Voyager did not fly out of the solar system.
Actually.
Voyager 1, which flies at a speed of 17 kilometers per second, will not leave the solar system for another 30,000 years...
This is also the reason why it takes Trisolarans hundreds of years to reach the earth, and most of them will be killed or injured along the way - for a creature the size of a molecule to travel 0 kilometers, it is a life-threatening rush...
..
Of course.
Speaking of Voyager 1, here is a question that many students have been curious about:
Why can Voyager 1 fly for so long?
In fact, this question can be discussed in two parts:
Communication power and flight power.
The battery used by Voyager 1 is a radioisotope thermoelectric generator, which is three plutonium radioisotope thermoelectric generators as the power source, which can provide 40 watts of power.
But this is only the power used for communication, for transmitting radio signals.
The strength of radio signals will continue to attenuate as the transmission distance increases.
When the signal transmitted by Voyager 1 reached the ground, the power was attenuated to one trillionth of its original value, only 10^-watts.
Not only is the transmission power extremely low, the transmission speed is also very slow, only about 1.4kb/.
In order to detect such a weak signal, NAA built the Deep Space Network DN to receive the data returned by Voyager 1.
At present, Voyager 1's communication power is approaching its limit. It will be unable to transmit information back in about 0 years and will lose contact completely.
Next let’s talk about flight dynamics.
This question is very simple, and there is only one answer:
Voyager 1 does not require a long-term power source for flight.
Because it was severely accelerated by the gravitational slingshots of Jupiter and Saturn.
Those who didn’t get mad at their high school physics teachers should know this.
In our solar system, there are three concepts of velocity:
First cosmic velocity.
Second cosmic speed.
And the third cosmic velocity.
When Voyager 1 left the earth, the rocket did not have the ability to accelerate them to the third cosmic speed.
The rocket only allows them to reach the second cosmic speed, allowing them to escape the constraints of the earth's gravity and fly to the solar system outside the earth's orbit.
During the flight of Voyager 1, both Jupiter and Saturn moved to the same side of the sun.
So it was accelerated by the gravitational slingshot and reached the third cosmic speed, which is the speed of escaping from the solar system.
after that.
It does not need any long-term power source and can keep flying out.
Useless knowledge has increased.jpg.
Okay, let’s get back to reality.
In summary.
The location where the planet may exist is near the Oort Cloud.
At such a remote location, at least in the observation records of the past year, it is impossible for it to leave the area defined by Gauss.
Therefore, Riemann and others could decisively discard the observation records in other areas and analyze the data in the target area alone.
"The next thing is very simple."
After arriving at the console of the analysis machine, Riemann took a document from the table and said to Xu Yun:
"With the assistance of Mr. Cauchy and others, we quickly converted these data to the true near-angle point and determined more than two thousand values."
Xu Yun took the document and read it carefully.
Ever since Gauss spent an hour calculating Ceres using the least squares method, the scientific community has reached a new stage of understanding planetary orbits:
The orbital elements themselves are also a function of time, and the 6 independent orbital elements can be divided into two groups.
From this, the position of the planet in the orbital coordinate system is also deduced, that is:
↑={o}a(coe-e),{o}a1-e2^(1/)ine.
where e is the partial periapsis angle, and the relationship with the true periapsis angle Θ is:
taane/.
This is also one of the mathematical supports used by later teams looking for planets or other asteroids.
This chapter is not over yet, please click on the next page to continue reading! Although the values converted by Riemann and Cauchy are not as intuitive as later generations, they still show strong mathematical consistency.
Anyway, for these elders, the calculation difficulty is actually the same whether there is one more square root or one less square root.
Hey, this sentence seems to be applicable to many mathematical idiots in later generations...
Ahem......
Then Riemann pointed to the analytical engine not far away. At this time, Gauss, Cauchy and others were lying in front of the screen, doing the final verification:
"Later, the countess took action and input these data into the analysis machine, and finally screened out more than 30 sets of suspected coordinates."
"We carefully verified these coordinates and finally determined three sets of observation records at different times."
"Next, as long as we make sure that these three sets of data match the same star attributes, we can be sure that we have found the planet."
Xu Yun went through these processes in his mind.
After confirming that there were no problems with the process and ideas, my sense of expectation and confidence increased slightly.
After all, in this star search experiment, they have a killer weapon in their hands, which is the planetary orbit equation derived by Gauss.
This is something that future generations cannot deduce...
Xu Yun and Riemann then stood by the analytical machine, waiting for the final results.
About ten minutes later.
Bada——
Gauss put down his pen and paper and raised his head at the same time as Cauchy and others.
Seeing this, Xu Yun hurriedly stepped forward:
"Professor Gauss, what are the results of the verification?"
After hearing this, Gauss looked at Kesi next to him, held the two legs of the glasses with both hands, and slowly took them off.
I saw the prince of mathematics gently rubbing the bridge of his nose, and a word suddenly came out of his mouth:
"God King."
A question mark appeared on Xu Yun's face:
"?"
Then, before Xu Yun could speak, Gauss looked at him:
"Luo Feng, what do you think of the name Shenwangxing?"
Xu Yun was stunned for two seconds. After coming back to his senses, his eyes widened:
"Professor, what do you mean..."
Gauss was silent for a moment, took a deep breath, and the fingers holding his glasses trembled slightly:
"Yes, according to re-examination, we have discovered a planet about 00 astronomical units away from the earth, with a mass about ten times that of the earth, and an orbital period of about 17,000 years..."
"A new planet."
Gauss just finished speaking.
In front of Xu Yun, a curtain of light appeared without warning:
[Didi Didi——]
[The regular tasks of the Wallfacer copy have been completed and will return to reality in four hours.]
【Countdown............】
...
Note:
Keep the word count down today and take a break.
In addition, today is 918. Please remember the national humiliation and this debt.
