Origin of the solar system

Image: Educational Astronomy

The solar system, the place where planet Earth is located, has its origin 4.6 billion years ago. From that moment, it would go through several phases until the planets were created as we know them today. In this lesson from a TEACHER we bring you a summary of the origin of the Solar System to understand, in a more detailed way, how the place where we live was formed and about which we know so little today.

Index

1. How did the solar system form
2. The phases of the Sun's creation
3. Components of the solar system

4,600 years ago It seems that a large molecular cloud, made up of hydrogen, helium and heavier debris, reached a so-called gravitational collapse. That is, a period in which, due to the movement that was beginning to originate, the components were focusing on different points.

This series of gravitational movements began to create a protoplanetary disk where the greatest amount of mass was grouped in the center. In this place, together with the gases, it was obtaining

This would lead to the creation of the Sun. The rest of the matter was flattened by the rest of the so-called disk and little by little with the cooling of matter, planets and other bodies that make up the system today were created solar.

In this other lesson we will discover what they are the parts of the sun so that you know better the formation of this star.

Image: Astrophysics and Physics

Within the summary with the origin of the Solar System, we stop at the phases through which the Sun has passed since its creation. In addition, they are related to the creation of the planets and the forms they have been obtaining.

Makes 50 billion years the density of hydrogen coupled with the pressure in the core of the great star, caused a thermonuclear fusion. After this, and during 2,000 million years, a series of solar winds were created by means of which it was cleansing of rest of gases and dust the so-called protoplanetary disk, sending these into space beyond the newly created system solar.

From that moment, our star has been getting brighter and stronger, since all its hydrogen is being consumed inside. So much so, that, according to scientists, it has reached 70% of its maximum brightness, leaving about 5,000 million years until it reaches 100%. At that time, major catastrophes are expected for the system as we know it.

We continue to see how the planets formed that exist today, which we will divide into two:

• Interiors: are the planets Mercury, Venus, Earth and Mars, or what is the same, the terrestrial planets, this name is due to the fact that they are the only ones that have a solid soil, made up of rocks and minerals. They are the smallest planets, since they need more heat to be able to keep all the elements solid.
• Exteriors: Jupiter, Saturn, Uranus and Neptune, are those that make up this group, in this case, we will find that they are totally gaseous planets, which inhabit beyond the line of freezing, that is, the solar energy does not arrive strong enough, which makes it possible for the volatile gases to remain solid. In the same way, we will find large layers of ice, which can greatly increase the size of these planets.

On the other hand, the rest of elements that remained in suspension were grouped together, creating asteroid belts, like the Kuiper belt, where in turn we will find the dwarf planets, units that, having Considered enough mass to be planets, their orbits are not clean from space debris.

The satellites of the Solar System

To finish the summary with the origin of the solar system, we will talk about satellites, elements that are located in the orbits of the planets and that vary depending on this.

They are usually shaped by passing a large mass within the nucleus of gravity's action, remaining attached to the planet forever. Other studies affirm that it could be that each planet during its creation, created another protoplanetary disk and that the movement originated a planet with its various satellites.

In this other article we discover you how many planets are in the solar system today.

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