(Not modified, please ...... later) ）

"First experienced the supernova explosion of the star,

And then it was thrown out by the complex gravitational pull of the binary star system."

"There should be no civilization in this galaxy!"

It was also when Yang Meng was observing the unknown planet ahead,

He noticed that the cosmic background of the unknown object seemed to suddenly become a little brighter.

"What happened?"

"Attention! The brightness of Nanhe 3A has changed abruptly. ”

With Xiao Yi's voice, a video was transmitted to his brain through Yang Meng's optic neural network,

Seeing the picture in the video, Yang Meng's face changed slightly,

I saw that the original and extremely bright Nanhe San, its brightness rose by a level in just a few seconds,

It's not a good thing that the brightness of stars in the universe changes drastically.

On January 22, 2011, humans observed a drastic change in the luminosity of Betelgeuse over the course of a day.

And such a drastic change in luminosity also indicates this thing,

That is, the star's life is coming to an end.

At this moment, looking at the Nanhe San in the detection image, the photometry has changed,

Yang Meng's worst fear still happened,

"It seems that Nan Ha San has begun to show his posture in the last stage!"

"We must complete the task as soon as possible and leave Nanhe San!"

Thinking of this, Yang Meng flipped through the plan he had just made,

Carefully check the contents of the book to ensure that you can complete the task in a very short time.

And then leave the Nanhe three-star system as soon as possible,

For the sake of safety, he can't stay in the Nanhe three-star system for too long.

Although he knew that the reaction at the end of the third period of Nanhe was much less intense than that of Betelgeuse,

After all, Betelgeuse has a mass between 10 and 20 times the mass of the sun.

Its life cycle is only about 8 million years.

The whole star is bound to be a short and heroic life,

Betelgeuse supernova explosion is also one of the few supernova explosions that modern humans can have the opportunity to witness with their own eyes.

At that time, the brightness produced by the explosion of Betelgeuse supernova will exceed -17 to the naked eye of humans on Earth

The apparent magnitude of the full moon is -12,

Betelgeuse's Eruption will be five levels brighter than it would be during the Full Moon.

The mass of Nanhe Sana is only 1.5 times that of the sun,

Compared with Betelgeuse who died violently, Nanhesan is more like an old man who died slowly in the torture of various diseases.

But even though Nanhesan's death process was slow, the struggle caused by death was not as violent as Betelgeuse's.

After all, Nanhe 3a is a star with a mass of more than 1.5 times that of the sun.

For human beings, an extremely fragile life,

The slightest cough from this star can threaten the safety of humanity with the saliva it spews.

As for why we are old and sick,

Or is it because the hydrogen in its body is about to run out, and the star begins to burn helium, which it cannot suppress......

Looking at the white star outside the porthole,

Because there is still a certain distance from Nanhe 3A,

Nanhe 3a is still a point of light with the naked eye, not a spherical celestial body,

However, if you look closely, you will see that the star is white and orange

……

Nanhesan's mutation sounded the alarm for Yang Meng,

He also couldn't determine the exact time of Nanhe-san's next violent terminal stellar activity.

Just as humans can't accurately judge the time of Betelgeuse's explosion,

Maybe now, or maybe a year from now,

In short, one of Yang Meng's next goals is to complete the collection and leave the Nanhe three-star system as soon as possible.

Guided by this thinking,

Yang Meng slightly modified the deceleration process and deceleration efficiency of the spacecraft on the space scale.

After all, he is a professional astronaut who has been trained for a long time,

There are certain ways to deal with the load force caused by deceleration

And so ten days passed,

Yang Meng finally saw the celestial object he was going to through the optical astronomical telescope.

"It's strange that the atmosphere of this planet is actually pink!"

Yang Meng has seen many strange planets,

Among them is the red star Rutan,

There is also a pale green Titan, as well as a jade-colored astronomical star, and an ice-blue Neptune.

But this pink planet is not common,

Although uncommon, it is not the most special existence in the universe,

In the constitution of Virgo, humanity has discovered, a much more pink planet.

And compared to the special color of this planet,

What's truly unique is the structure of its atmosphere,

A normal planet, bound by gravity, will bind its atmosphere to a certain height above the ground.

When the height exceeds a certain distance,

Under the combined influence of stellar winds and reduced gravitational constraints, gas escapes occur.

This creates an atmospheric structure that appears to be covered in a transparent dome of a sphere.

But the spherical cover covering the planet in front of me seems to have been lifted.

It's like lifting the lid of a steamer and white steam comes out,

This is the state of the planet at this time,

Strands of gas are dispersed in the surrounding space,

It seems to be just the right exploding head,

It's like a fluffy pink marshmallow.

And such a peculiar atmospheric structure is the first time Yang Meng has seen it.

"This planet is so similar to Marshmallow, why don't we name it Marshmallow Star!"

As the first discovery of this planet,

Yang Meng has a certain naming right to this planet,

This is also one of the benefits of being a pioneer astronaut.

And after giving the planet a name, Yang Meng tried to find the reason for the existence of this special phenomenon on this planet.

Marshmallow Star has 1.3 times the mass of Earth,

And it's 2.1 times the size of the Earth.

This means that the planet is smaller than the Earth.

And such a mass and volume is already enough to become a planet,

In addition, the presence of a magnetic field on the planet Marshmallow,

But the magnetic field is only one-sixth the strength of the Earth,

This suggests that the planet has an active core.

But not as active as the Earth.

These data, which look like a normal planet,

And what really caught Yang Meng's attention was the autobiographical speed of Marshmallow Star:

"The planet's rotation is so slow!"

Through the observation of this period of time,

Xiao Yi calculated the autobiographical cycle of this planet,

According to the time of the earth, its autobiographical period is 376 days,

In other words, it would take much more than a year to see a complete diurnal process on this planet.

"Such a slow autobiography also makes the earth-grasping bias on the surface of this planet very small!"

The geostrophic deflection force caused by a planet's autobiography is an important factor affecting the atmospheric circulation of a planet.

The prevailing wind belts, trade wind belts, and areas that can be formed by typhoons on the earth are all affected by it.

If the rotation of the planet is extremely slow, the atmospheric circulation on the planet will calm down to a certain extent.

Like a few giant planets in the solar system,

A supersonic storm can blow up above, in addition to the extremely violent thermal convection environment inside,

Also associated with extremely fast rotation,

Jupiter, Saturn, and the rotation time are all less than 10 hours.

Uranus Neptune also has a rotation time of less than 20 hours,

Coupled with their sheer size,

A huge number of latitude circumferences, divided by a very short rotation time, gives an extremely fast rotation speed,

Led by such a high speed, the atmospheric circulation on these planets is also extremely violent.

So it's clear that

On these giant planets, there are ring-shaped ribbon-like structures.

Without the strips pulled by the rapid rotation, the atmosphere of these planets is likely to become chaotic and fluffy.

Thinking of this knowledge, Yang Meng muttered to himself:

"There is no strong storm, but it provides convenient conditions for landing on this planet!"

"But what is the reason why the rotation of this planet is so small?"

There are many factors that contribute to the change in the rotation of a planet.

Factors such as collisions, tidal locks, loss of angular momentum, etc., can all cause a change in the rotation of a planet,

"Judging from the tilt of the Earth's axis, the probability of a large collision of this planet is not very high!"

Yang Meng touched his chin and thought to himself,

When a planet is formed by accretion of stellar remnants, it generally maintains the same axis as the star.

will stand very straight,

If you are hit by some large celestial body in the years that follow, it will be tilted.

And the earth is tilted 23 degrees,

It is precisely this inclination that has led some researchers to speculate that the formation of the moon may have been caused by a large celestial body colliding with the earth.

Unfortunately, since the impact occurred at the beginning of the formation of the Earth, it is not certain whether the Earth was subjected to a violent impact that was remodeling.

Fortunately, in the outer solar system, there is a dwarf planet Haumea that has been hit,

Its rotation period reaches 3 hours, like a spinning top that has been pumped up.

Compared to the situation in the solar system,

And the marshmallow planet in front of him stood very straight, and the tilt was not large,

And considering the situation of the galaxy in Nanhe-3,

Yang Meng believes that the planet may be affected by tidal locking,

"But this planet is too far away from the star, how can it be affected by tidal forces!"

"And tidal locking is not common in planet-star relationships!"

"Could it be that, as I guessed before, this planet was thrown out!"

Tidal locking is a very common phenomenon in the universe,

Earth and Moon,

Jupiter, Saturn, Uranus, Neptune, and most of their own moons are tidally locked.

i.e. one side of the moon will always face the earth,

In such a state, the rotation time and the revolution time will be equal.

That is, a day on the moon is equal to a year on the moon,

But this kind of phenomenon generally only occurs between planets and moons.

Although the stars will slowly lock into their own planets,

However, due to the extreme mass of the planets, the locking process is extremely slow

If the earth is to be tidally locked by the sun,

It takes tens of billions of years to always face the sun with one side,

And the greater the mass of the planet, the less likely it is to lock on.

The planet in front of you is a massive planet.

"What if Nanhe-3b was locked on this planet when it was still a star?"