Who was the first planet in the solar system, was it Earth?

As we all know, our universe is made up of some very new gases, new people, meteorites and some dark matter.

Composition, the number of galaxies in the universe is innumerable, the area of each galaxy and the number of planets contained in it are different, take our solar system as an example, we have eight planets in Tai'an City, is a family composed of eight planets, for the universe we are beyond reach, after all, the universe is full of a mysterious place, but for our solar system, the most proud thing should be to give birth to our civilization wisdom, Next, I would like to introduce to you the first planet in the solar system since the birth of the sun!

Since ancient times, everyone has been more interested in the birth and formation of the solar system, the formation and evolution of the sun began 4.6 billion years ago in a huge molecular cloud of a small piece of gravitational collapse, most of the collapsed mass is concentrated in the center, forming the sun, the rest of the flattening and forming a protoplanetary disk, and then forming planets, satellites, meteorites and other small solar system celestial bodies! It is precisely because of the appearance of the sun that we have our solar system today! All the large and small stars in the solar system revolve around the sun, so the sun is the earliest formation of the solar system, and we currently know the eight planets in the solar system.

In order they are in turn Mercury, Venus, Earth, Mars, Jupiter.

Saturn, Uranus and Neptune.

So are their places arranged?

So since the birth of the solar system, what was the order of the eight planets at the beginning? Scientists said that because when the sun was first formed, the number of celestial bodies was very different from now, in the early days, our galaxy may only have one or two hundred planets, they were originally in their own orbits, for some orbits are relatively close, plus the energy of the sun is also unstable, so it is easy to deviate from orbit, in the process of long-term operation, many asteroids will collide and then merge together, so the current eight planets, There are a lot of asteroids combined! Jupiter, on the other hand, cleaned up most of the space junk for the solar system.

That is, some meteorites and comets.

Its existence is of great significance!

With the development of our science and technology, we all know that Jupiter is the most massive planet in the solar system, equivalent to 318 times the earth, and the volume is also 1300 times that of the earth, so scientists believe that Jupiter should be the first to form a large planet, Jupiter is the largest and fastest rotating planet among the eight planets in the solar system, the fifth planet from the inside out, its mass is one thousandth of the sun, and it is twice the mass of the other seven planets in the solar system combined! Jupiter has at least 79 moons! Therefore, Jupiter should be the first of the eight planets to form!

The first planet to form in the solar system was Jupiter, which was formed very massively, so it was also the most stable, and Jupiter would continue to devour the surrounding planets.

It is the earth because it weighs very much and its presence has a great effect on people to live safely.

Earth is the third planet in the solar system from the inside and outside, and it is also the terrestrial planet with the largest diameter, mass and density in the solar system, about 100 million kilometers (1 astronomical unit) from the sun. The Earth rotates from west to east while revolving around the Sun. At present, the earth has a natural satellite - the moon - the earth, and the two form a celestial system - the earth-moon system.

It originated hundreds of millions of years ago from the primordial solar nebula.

The radius of the Earth's equator is kilometers, the polar radius is kilometers, the average radius is about 6371 kilometers, and the circumference of the equator is about 40075 kilometers. The Earth's surface area is 100 million square kilometers, of which 71% is oceans and 29% is land. The main components of the atmosphere are nitrogen and oxygen, as well as small amounts of carbon dioxide and argon.

The age of the earth. In the 21st century, scientists have reconfirmed the age of the earth, believing that the earth was created much later than the time of the solar system, spanning about 100 million years, which is much later than the previously thought 30-45 million years.

Previously, scientists calculated that the solar system was formed 100 million years ago through the formula for calculating the age of the solar system, and the age of the earth was about 3 billion to 4.5 billion years later than the solar system, about 100 million years ago. In 2007, Swiss scientists revised the data to conclude that the Earth was created 62 million years after the formation of the solar system.

The Earth is the third planet in the solar system from the inside and outside, 149 597 kilometers 1 astronomical unit away from the sun, is the only celestial body in the universe known to mankind to have life, and is also a planet inhabited by human beings, with a total population of 100 million. With a mass of about kilograms, a radius of about 6,371 kilometers and an average density of g cm3, it is the highest among the planets in the solar system.

The earth rotates and revolutionizes at the same time, resulting in the change of day and night and the four seasons, respectively, with one solar day rotating once and one solar year rotating once in one solar year. The rotating orbital plane is called the equatorial plane, the orbital orbital plane is called the ecliptic plane, and the angle between the two is called the yellow-equatorial angle. The Earth has only one natural satellite, the Moon.

Earth is the fifth largest planet in the solar system and the terrestrial planet with the largest diameter, mass and density in the solar system, at a distance of 100 million kilometers from the sun. (There are eight planets in the solar system)).

Other planets: 1Mercury.

Mercury is closest to the Sun and is the smallest planet in the solar system in terms of volume and mass.

2.Venus. Venus is the sixth largest planet in the solar system, the hottest planet in the solar system, and was called Taibai or Taibai in ancient China.

3.Mars. Mars is the fourth farthest planet from the Sun and the seventh largest planet in the solar system.

4.Jupiter. Jupiter is the fifth planet from the Sun, known as the Year Star in ancient China.

Because Jupiter's orbit is exactly 12 years, that is, an earthly branch, Jupiter is the most massive of the planets in the solar system, its mass is twice that of all the other 7 planets combined, or 318 times that of the earth, and the volume is 1316 times that of the earth, because of its huge size, people can see it without a telescope, Jupiter is called the "king of the planets of the solar system".

Jupiter has the fastest rotation speed in the entire solar system.

5.Saturn. Saturn, the sixth-farthest planet from the Sun and the second largest of the eight planets, is known as "Zhenxing" in ancient China, and is the least dense planet in the solar system and can float on water.

6.Uranus.

Uranus is the seventh farthest planet from the Sun in the Solar System, the coldest planet in the Solar System, and the third largest planet in the Solar System in terms of diameter. Uranus is larger in size than Neptune and smaller in mass.

7.Neptune.

Neptune is the eighth planet orbiting the Sun and the fourth largest body in the Solar System (in diameter). Neptune is smaller than Uranus in diameter but has a greater mass.

Earth is the fifth largest planet in the solar system by size.

The Earth is the third largest planet in the solar system by heliocentric distance.

It is the ninth largest planet. It is the ninth largest planet.

The distance of the Earth is the third in the solar system.

respectively. Mercury is 57910000 km from the Sun and Venus is 108200000 km from the Sun.

The Earth is located at a distance of 149600000 km from the Sun.

Mars is located 227,940,000 km from the Sun.

Jupiter is located at a distance of 778,330,000 km from the Sun.

Saturn is located at a distance of 1429400000 km from the Sun.

Uranus is 2870990000 km from the Sun, Neptune is 4504000000 km from the Sun, and the Earth is the fifth largest in the solar system.

They are: (km is the diameter of the equator).

1.Jupiter 142984 km.

2.Saturn 120,660 km.

3.Uranus 51118 km.

4.Neptune 49,532 km.

5.The Earth is 12,757 km.

6.Venus 12106 km.

7.Mars 6794 km.

8.Ganymede 5262 km.

9.Titan 5150 km.

10.Mercury 4880 km.

11.Callisto 4800 km.

12.Io 3630 km.

13.Moon 3476 km.

14.Europa 3138 km.

15.Triton 2707 km.

Summary. Earth (English name: earth; Latin:

Terra) is the third planet from the Sun and the only celestial body known to humans to nurture and support life. The surface of the Earth is roughly a land mass made up of continents and islands. The remainder is covered by water, mostly by oceans, bays, and other saltwater bodies, but also by lakes, glaciers, rivers, and other freshwater bodies, especially most by glaciers, which together make up the hydrosphere.

Most of the Earth's polar regions are covered in ice. The Earth's outer layer is divided into several rigid tectonic plates that migrate to the surface over millions of years while its interior remains active, with a solid iron core, a liquid outer core that generates the Earth's magnetic field, and a convective mantle that drives plate tectonics, among other things.

Earth (English name: earth; Latin: Terra) is the third planet from the Sun and the only celestial body known to mankind to give birth to and support life.

The surface of the Earth is roughly a land mass made up of continents and islands. The remainder is covered by water, and the large cave is partially covered by oceans, bays and other saltwater bodies, as well as lakes, glaciers, rivers and other freshwater bodies, especially glaciers, which together form a water barrier. Most of the Earth's polar regions are covered in ice.

The Earth's outer layer is divided into rigid tectonic plates that migrate to the surface over millions of years, while the interior remains active, with a solid iron core, a liquid outer core that generates the Earth's magnetic field, and a convective mantle that drives plate tectonics.

The average distance between the Earth's orbit around the Sun and the Sun is about 100 million kilometers (93 million miles), and one revolution per ordinary solar day (365 days, 6 hours, 9 minutes and 10 seconds) is called a sidereal year. In 1990, Voyager 1 captured images of the Earth from 6.4 billion kilometers (4 billion miles) (faint blue dots). The revolution causes the Sun to have an apparent motion of about 1° to the east relative to the star every day, and the movement every 12 hours is equivalent to the apparent diameter of the Sun or the Moon.

As a result of this movement, it takes an average of 24 hours, or one solar day, for the Earth to complete one rotation around its axis and allow the Sun to pass through the midheaven again. The average speed of the Earth's revolution is about km s (107,000 km h), and it can travel 12,742 km (7,918 mi) in 7 minutes, which is equivalent to the diameter of the Earth. It can travel about 384,000 kilometers from the Earth and the Moon in about an hour.