Do you think the Sun stands still and the Earth revolves around it? Just wrong!

Many people believe that the Sun is the center of the universe, it stands still and other planets like Earth, Venus, Mars . orbit around it. So what about reality? Please read the following article to get the most accurate answer.

Theory of mindfulness

Geocosmic theory is one of the earliest established theory of ancient astronomy. According to this theory, people consider the Earth to be the center of the universe, standing still and all the stars and planets, including the Sun and the Moon, orbiting it.

Geocosmic theory is considered as a cosmic standard model in ancient Greece. Even the leading scientists of that period, such as Aristotle, Ptolemy, and others, agreed with geocentricism.

Simulation image of geocentric theory.

In this period, ancient astrology identified the Earth as spherical. This view also dominated Europe at that time.

The heliocentric theory

It was not until the 17th century that famous scholars such as Copernicus, Kepler and especially Galileo gradually introduced the concept of heliocentric theory.

According to this concept, the Sun is the center of the universe, and other planets like Earth, Mars, Mercury . revolve around it.

Picture simulating heliocentric theory.

The heliocentric concept is probably related to many people but typically Galileo, who is considered the father of modern science, the father of modern physics, is praised by Stephen Hawking : " Galileo, perhaps more any individual who is responsible for the birth of modern science ".

The great Galileo scientist of his youth.

He was the one who fought for the right, for science, even though he was later forced to abandon heliocentrism and live the last days of house arrest under the orders of the Roman Inquisition. He has a saying that has great value both figuratively and literally: " Anyway, the Earth is still spinning !".

So is that true?

Currently, the development of astronomy helps humans make great strides in observing and studying the universe, heliocentric theory is no longer accurate because of the deviation in the cosmological concept of the era before present .

The reality of the solar system's movement.

The sun is not the center of the universe, it is only the center and remains only if it is based on the plane of the solar system.

In fact, the Sun is just one of about 200-400 billion stars of the Milky Way. Just like the Earth always revolves around the Sun, our star is constantly moving, spinning around the core of the Milky Way, not standing still like the heliocentric mentioned!

The solar system moves around the Milky Way.

The Milky Way is a giant spiral galaxy in the form of a disk shape, with branches that are not tightly aligned and somewhat close to the center protruding. It has a diameter of about 100,000 light-years.

The distance from the Sun to the Milky Way center is about 28,000 light-years, so even though the Sun travels at a massive speed of 828,000 km / h, it still takes 226 million years to complete a ring. around the Milky Way.

Result

Thus we can see, neither the Sun nor the Earth are the center of the universe and everything does not revolve around it. The sun is always moving, even at great speeds, but the point is that it always carries its "cubs" when it orbits the vast Milky Way.

Solar system plane when moving.

It is also for that reason that there are confusion in geocentric and heliocentric theory.

But here we have more questions, the Milky Way is just one of the countless galaxies in the vast universe, so what does it turn around? Or is it wider, outside the universe, or is there anything else the universe revolves around?

What is a reference system?

In mechanics, the frame of reference is a coordinate system, based on which position of all points on objects and locations of other objects is determined, and there is a time meter to determine the time. points of events. The same physical event, when we change the frame of reference, the position and time will vary.