Why did Halley s Comet hit the Earth?

Whether Halley's Comet will be, I don't know, but there are many comets that have the possibility of colliding with the Earth (but the probability is very small, don't worry), and the reason is the same, that is, the Earth's orbit is circular, and the comet's orbit is elliptical, so there is the possibility of crossing (but don't forget that space is three-dimensional, not every comet will intersect with the Earth's orbit), so there is a possibility of reaching a certain intersection at the same time, but these chances are very small!

It's not ...... hit

Halley's comet is a large comet that has been confirmed to be out of time. In 1705, the famous English astronomer Halley predicted that the comet seen in 1531, 1607 and 1682 would return in 1758 based on Newton's latest laws of motion, and although Halley died in 1742, the comet returned in 1759 as scheduled. In honor of Halley, people named the comet after him.

The average revolution period of the Harley is 76 years, but you can't use 1986 plus a few 76 years to get its exact regression date. The gravitational pull of the main planet causes it to change its cycles, falling into one cycle after another. Non-gravitational effects (evaporation when close to the Sun) also play an important role in making it change periodically.

Between 239 BC and 1986 AD, the orbital cycle varied from year) to year (451 and 1066).

Halley's comet's nucleus is approximately 16x8x8 kilometers. It is almost unique among many comets, large, active, and has a well-defined orbit. This makes it easier to aim at the Giotto Flying Vehicle (ESA-owned).

But it doesn't represent what other comets have in common.

Halley's Comet will return to the inner solar system in 2061.

Because its orbit intersects with the Earth, if the Earth and Halley's Comet move at the same time to the orbital intersection point, it will collide.

Halley's Comet affects the Earth's environment.

Summary. If Halley's Comet were to hit Earth, it would have huge catastrophic consequences. First of all, a comet hitting the Earth will create a huge shock wave, which will cause widespread ** and flooding; Second, comets striking the Earth generate a lot of heat, which can lead to widespread wildfires and forest fires; In addition, a comet impact will also produce a storm of dust, which will affect sunlight, reduce photosynthesis by plants, and temporarily lose light on the Earth; Finally, a comet impact can also throw seawater into the air, causing massive tsunamis that will destroy coastal cities and other buildings.

If Halley's Comet were to hit Earth, it would have huge catastrophic consequences. First of all, a comet hitting the Earth will create a huge shock wave, which will cause widespread ** and flooding; Second, comets striking the Earth generate a lot of heat, which can lead to widespread wildfires and forest fires; In addition, a comet impact will also produce a storm of dust, which will affect sunlight, reduce photosynthesis by plants, and temporarily lose light on the Earth; Finally, a comet impact can also throw seawater into the air, causing massive tsunamis that will destroy coastal cities and other buildings.

Will it happen if Halley's Comet hits Earth? If so, how much energy?

No**. The energy of Halley's Comet hitting the Earth is only the energy of some small volcanic eruptions, and the energy is about 10 7 kilojoules (kj), which can be compared to the energy of 10 million tons of standard explosives. This energy can only destroy areas up to a maximum of a few hundred kilometers, not a much larger area**.

Is the energy of an asteroid with a diameter of ten kilometers hitting the earth equivalent to 100 million hydrogen bombs on the same place at the same time!

There is no definitive answer to this question as it depends on the material composition, surface area, density, and other factors of the planet. Generally speaking, for a planet with a diameter of 10 kilometers to collide with the earth, its ** energy may be about equal to the energy of 1 million hydrogen bombs at the same time and on the same earth**, but it may also be smaller than this value, or it may be larger than this value. In addition, it is possible that the planet will not collide with **, but will form other types of damage such as volcanic eruptions or magmatic activity.

Will that be the equivalent of 100 million hydrogen bombs in the same place at the same time?

According to research, the energy of a 10-kilometer asteroid hitting the Earth is equivalent to about 10 million bits of energy, while the energy of a hydrogen bomb can reach billions of bits, or even tens of billions of bits. Therefore, the energy of a ten-kilometer asteroid hitting the earth is far less than the energy of 100 million hydrogen bombs on the same earth at the same time.

Hello, Halley's Comet will hit the Earth.

Comets hit the Earth at a frequency of 6 times per 100 million years (a galactic sidereal celestial sphere year), and when the comet passes by the Earth, it may crash into the Earth, causing catastrophic damage to the Earth. The vast majority of comets will stay outside of Neptune's orbit and pose little threat to Earth. There are exceptions, and some comets are affected by the gravitational pull of nearby large celestial bodies, which can change their orbit and potentially crash into the Earth.

Why would it be? Is it energy-hungry? How big is it?

Halley's Comet impact on Earth will cause a large-scale extinction of life, but humanity with scientific and technological power should not be extinct, but civilization will be dealt a major blow.

The force of the impact is equivalent to 20 million tons of TNT explosives.

Is Halley's Comet hitting the Earth's ** energy?

Yes. Can a 23-year-old girl be said to be a young and beautiful girl?

OK. How do you distinguish between the age groups of girls and women?

Before adulthood, people are generally called girls. After marriage is a woman.

Is 23 to 27 still a girl?

Be. Is 29 still a boy?

29 years old can also be a boy.

Halley's Comet cannot hit the Earth, its orbital inclination is in the opposite direction of rotation, and it has an inclination angle of 18° to the ecliptic plane), so in space, Halley's Comet orbit and the Earth's orbit do not intersect. If you want to hit the Earth, you must first place its orbital lift-lift node near the Earth's orbit, and then return to the Earth's ascending node exactly past Halley's Comet. How difficult this probability is, just look at the transit of Venus, you must know that the orbital inclination of Venus is only more than one degree, and it is conjunct once every two years, and the transit of Venus is also a celestial phenomenon that meets twice in 117 years.

Halley's Comet has to break the perihelion ecliptic longitude of dozens of degrees to achieve the intersection of its orbit with the Earth (perihelion amplitude, near ascending ecliptic, which cannot be done in hundreds of thousands of years.

The lifespan of a comet is not infinitely long, and every time it approaches the earth, it will lose a considerable amount of material, but fortunately, Halley's comet has a better base, and the diameter of the comet's nucleus is 10 kilometers, which is enough to toss thousands of times. However, compared to the time to correct the orbital parameters, it is really a drop in the ocean.

In the end, the comet's orbit cannot be accurately calculated, first of all, the perturbations of other planets, which is easy to do, astronomers will calculate. But what's even more troublesome is that when it gets close to the sun, it throws a considerable amount of material, which is like installing an engine that is constantly changing its orbit. If you apply the current number of orbital roots to extrapolate the historical record, you will find that Halley's Comet was still near its original location at the time of the return recorded in the "Left Biography" in 659 BC.

Therefore, according to the previous regression, the next return to perihelion is calculated on July 28, 2061, but it is basically impossible to cross perihelion at this point in time next time.

Comets visible to the naked eye occur almost once a year, and comets visible in cities occur almost once in ten years. Hundreds of comets are discovered every year, but it's hard to see. It would be a shame to expect a particular comet that does not orbit the ecliptic to hit the Earth.

Halley's Comet returns approximately every 76 years, and Halley's Comet will return to the inner solar system in 2061. But not to hit the earth.

It returns approximately every 76 years.

During 75-76--- Gluttony is happy to serve you o( o haha

3. The two are directly combined into one. In the last case, it is possible that the two will merge into one, and the two will collide with each other, and they may be affected by a gravitational pull of the Earth and directly become a planet. After becoming a planet, the help to the earth is conducive to human beings to carry out a planetary migration plan.

The Earth will not be destroyed, but the Earth's biosphere could be devastated, leaving only some of the life in the deep ocean near the crater that does not depend on sunlight, and all life that depends on sunlight will be extinct.

I think that Halley's Comet, due to its mass of up to 300 billion tons, will be wiped out if it hits the moon.

Halley's Comet does not collide with the Moon because Halley's Comet's orbit does not overlap with the Moon's orbit.

The famous Halley's Comet was first discovered in Europe by the scientist Appianis in 1531. In 1607, the comet was discovered for the second time by scientist Kepler. When Halley's Comet was discovered for the third time in 1683, its orbit and its orbit were calculated only once in 76 years.

Scientist Halley**, by 1759, Halley's Comet will return to Earth, and in 1759, this prediction was confirmed, so people called this comet "Halley's Comet".

The tracks don't coincide, so they don't collide. But comets have long comet tails, and sometimes Earth encounters Halley's comet tails. However, the density of the comet tail is very low, and the earth passes through the comet tail like a swallow flying through the smoke of the cook, and nothing happens.

When Halley's comet returned in 1910, the Earth had passed through its comet. However, the lack of knowledge about comets at the time caused a great deal of panic, but in fact there was no effect.

Not at the moment, and even the chances of a derailed collision are very small.

No, it's going to be burned before it arrives.

Halley's Comet and planets hitting the Earth, how many times can you experience it in your life?

It's not that this is impossible, but with the current level of technology, it should be solved before, so don't worry about this.

I tell you, I tell you that Halley's Comet must be a scourge, and that it will be unstable in the future, and sooner or later my son will have to destroy the universe.

No, it's very stable. For thousands of years, the rules have been stable.

From the seventh year of Qin Shi Huang (240 BC) to the second year of Xuantong of the Qing Dynasty (1910), a total of 29 records were recorded, and the calculation results were in line with the results.

The next perihelion will be on July 28, 2061.