It s a pity that Chang e 2 didn t have a nuclear battery! Otherwise, you can fly out of the solar sy

Nuclear batteries are used to keep the various equipment on board the spacecraft running, not to power it**.

So even with a nuclear battery, Chang'e-2 will not be able to fly out of the solar system, because the power is not enough, of course, if there is a nuclear battery, then the various equipment on the spacecraft can run for decades without any problems.

If you want to fly out of the solar system, the speed of the spacecraft must reach the third cosmic velocity, and no carrier rocket on the earth can currently send a spacecraft the size of Voyager out of the solar system "directly", and the rocket from the earth will be launched out of the solar system, and the rocket will be continuously decelerated by the sun's gravity when it moves out of the solar system, similar to the ball thrown into the air and pulled back by the earth's gravity.

However, China's rocket carrying capacity is still limited by transportation conditions, and even high-thrust rockets have not yet been attempted to launch, and there is still a long way to go before the spacecraft can reach the third cosmic velocity.

Of course, Voyager eventually reached a third cosmic velocity because it continuously used Jupiter's and Saturn's gravitational slingshot effect to accelerate itself, and the gravitational slingshot effect is the most fuel-efficient way for the spacecraft to use the planet's angular momentum to accelerate or slow down. In other words, the Voyager itself has been flying by inertia after launch, leaving very little fuel to adjust its orbit in order to fly by Jupiter and Saturn at the right angle to gain acceleration, and eventually surpass the third cosmic velocity. This has nothing to do with the nuclear batteries that keep the spacecraft equipment running.

In addition, Chang'e-2's 50 million kilometers is just an astronomical unit to reach the orbit of Mars. The entire solar system is more than 400 times the range, and Voyager 1 has now flown 17.8 billion kilometers. But such a distance in the universe, Voyager 1 has not even fully stepped out of the door of the solar system, because the nearest stars are 42 trillion kilometers away, so if you want to meet aliens and fly to planets outside the solar system, you need to develop a more efficient and faster way of launching and propulsion than the current rocket propulsion.

Interstellar voyages would only make sense if the speed of the spacecraft would have to be increased to the order of close to the speed of light.

It's no longer possible, he has a track, and he can only play in circles along the track, which doesn't require much power, which is basically equivalent to letting it go.

I'm afraid I didn't even think about this job at the beginning, and No. 1 is even more regrettable, there is still a lot of fuel, and it hit directly, and the fuel in Europe is too much, and it took two more years. Maybe we don't think it's interesting to observe and take pictures repeatedly. No. 2 is a little preparative, but I did not develop these functions reserved to the maximum before launch, and I feel it.

I'll tell you honestly, there's no such thing as a nuclear battery.

No, because Chang'e-2 is used to explore the moon and has landed on the moon, it will be attracted by the moon, so it is impossible to fly beyond the boundaries of the solar system.

No way, Chang'e-2 is used to explore the moon, has landed on the moon and will not fly out of the solar system.

If you can reach the second cosmic velocity, you can fly out of the solar system

I only know the third and fourth questions.

3: The Earth turns from west to east. (nonsense).

The rocket launch must first enter the earth's orbit and fly around the earth to obtain greater operating speed and change orbit. That is, to enter the Earth's orbit, it needs to reach the first cosmic velocity, which is the speed of the rocket relative to the Earth.

If the rocket flies in the direction of the Earth's rotation, then:

Rocket relative to Earth velocity = Flight speed provided by rocket fuel + Earth rotation speed.

If the rocket flies in the direction of the Earth's rotation, it decreases.

The greater the relative velocity of the rocket in the direction of the Earth's rotation, the less fuel it consumes.

4: When Chang'e-2 is between 230 and 240 kilometers high, the satellite separates and the satellite enters the orbit around the moon.

After the Long March-3C rocket is ignited, it accelerates to 1533 kilometers per second, which is the satellite's lunar speed.

Let's get back to the point and start answering the questions:

This is the knowledge of the rocket launch process. Talk about rocket launches:

Step 1: Preparation. Including the preparation of spacecraft and launch vehicles at the technical plant according to a series of programs for vertical assembly and vertical testing, etc., etc., etc., ready.

Step 2: Rocket launch. The rocket's first-stage engine and four boosters were ignited at the same time.

Step 3: Program Transition. The point is here, after the rocket lifts off, it starts the program turn, and it is set.

When the Divine Seven is launched, the programmed turn is set to 12 seconds after liftoff. That's why you said that the rocket started straight and then flew crookedly and flew eastward.

Step 4: Throw the escape tower.

..Omitted later).

This time it should be right.

I don't know the true face of Lu Shan, I only complain about being born in this mountain. Brother, you haven't started yet. It may be harder to figure you out than it is for a scientist to get Chang'e on the moon.

To put it simply, if you throw a small rock, if there is no atmosphere and the gravitational pull of the earth, that is, under the absolute vacuum and no other gravitational interference, the stone will fly in a straight line forever, never stopping, and the speed will never slow down. This is the introductory chapter, and I will slowly understand what is the first cosmic velocity, the second cosmic velocity, and the third cosmic velocity. This is a long story, and it needs to be rectified from the gravitational force.

I can only tell you a scratch here, and you have to reach at least one kilometer in 1 second so as not to be sucked down by the earth. All the Earth's satellites cannot exceed this velocity, which is called the first cosmic velocity.

If you want to break out of the earth, you need to reach a speed of at least one kilometer per second. This is the second cosmic velocity, because Chang'e will not go out of the solar system, I won't talk about the third, when the rocket increases the speed of the satellite to the point where it can break free from the earth.

kilometers, you may want to ask me, didn't you just say, how can you break free from the earth now, I tell you, because the moon also has a little gravitational pull. After the star and arrow are separated, the satellite will run to the moon at such a speed, and when it is fast to the moon, it is necessary to brake, because the gravitational force of the moon is small, and the speed cannot be captured by the moon if it is fast, so the speed of the satellite around the moon can only be achieved per second, and it cannot be exceeded, I can't remember it clearly, and I can't remember it clearly, and the so-called orbit change is to ignite it with fuel, and if you want it to turn that way, you should point it on the opposite side, and there should be a lot of fumaroles for orbit adjustment on the satellite. Brakes are also a principle.

1: China is at a suitable distance from the moon, which can reduce materials.

The batteries on board Voyager 1 are two nuclear batteries (plutonium batteries), which will allow it to continue flying until 2025.

Once the battery runs out, they stop working (lose contact with the ground), but will continue to move towards the center of the galaxy and never come back.

First of all, because there is almost a vacuum between the stars, there is no resistance, and interstellar probes such as Voyager 1 launched from the Earth do not need any power themselves, they will move at a constant speed and direction. At the same time, it benefited from several gravitational acceleration during its voyage (the slingshot effect when passing by Saturn and Jupiter). The power it carries is only used for changing orbits and adjusting flight attitudes.

In this way, Voyager 1 consumes more energy than it flies out of the solar system, and it can also be supplemented by solar energy.

The Chang'e-2 satellite (abbreviation: Chang'e-2, also known as the "2nd satellite") is the sister satellite of the Chang'e-1 satellite, which was launched by a Chang-3C rocket. But the Chang'e-2 satellite will have a higher resolution CCD camera, and other exploration equipment will be improved, and the data about the moon will be more detailed.

Chang'e-2 was launched at 18:59:57 on October 1, 2010 at the Xichang Satellite Launch Center and was a complete success. At 16:30:09 on December 13, 2012, it was the first close probe of the "God of War" on the earth. On January 18, 2013, he was awarded the special prize of the National Science and Technology Progress Award by the 2012 National Science and Technology Award Conference.

At about 1 o'clock on July 14, 2013, the distance between the Chang'e-2 satellite, which has become China's first artificial asteroid in the solar system, exceeded 50 million kilometers from the Earth, once again refreshing the "height of China". In November 2013, Wu Zhijian, spokesman for the Bureau of Science, Technology and Industry for National Defense, announced that the distance between the Chang'e-2 satellite and the Earth exceeded 60 million kilometers. At present, Chang'e-2, which has become China's first artificial asteroid in the solar system, is in good condition.

According to calculations by the Beijing Aerospace Flight Control Center, Chang'e-2 is expected to fly as far as about 300 million kilometers from Earth. This is the farthest flight distance of China's spacecraft.

After flying out of the solar system, only the radioisotope thermostat generator can be used, which is a small nuclear battery that is expected to be used until 202x. When Voyager loses power, it is no different from an ordinary meteorite, relying on inertia to go deep into the universe, and may eventually crash into a celestial body or be captured by its gravity.

In fact, Voyager is currently moving only by inertia and external gravity.

In the solar system, the Voyager uses a small amount of fuel to correct its orbit and accelerates its inertial flight with the help of the gravitational pull of the major planets, but now after leaving the solar system, there is still a large blank area in the middle of the direction of Gliese 445 and Proxima Centauri, and there will be no external gravitational influence, so the main thing that can maintain the motion is inertia. It is not until the next region with stars that Voyager's motion is likely to change again due to gravity.