What was the Sun like before the formation of the planets?

One of the most iconic figures in the universe is, without a doubt, the sun. But as majestic as this star is, it is also mysterious.

And one of the questions that permeate the star is: what was the sun like before the formation of the planets?

This may even seem like an easy question to answer.

After all, what could the emergence of planets – celestial bodies with sizes much smaller than the star – influence on its structure? 

But the answer may not be as simple as it seems. And that's what we're going to talk about in today's material. 

In this content, we will talk more about the main star in our solar system and better understand how the formation of the planets we know today may have influenced the sun. 

The origin of the sun

Have you ever stopped to think about how a star as powerful as the sun we know today originated?

The central figure of our solar system, the sun is estimated to have formed around 4.57 billion years ago, with the gravitational collapse of a nebula, a molecular cloud.

Thanks to a shock wave, most likely caused by a supernova – a powerful and large-scale stellar explosion – nearby. 

Before the impact of this supernova, the materials present in this nebula were too far apart, preventing the formation of strong gravitational bonds.

But after the nebula was hit by this impact, a small part of that wave was compressed enough to create a gravitational binding and collapse.

During this collapse, gravitational attraction caused matter to begin accumulating in places of greatest concentration of matter. 

And this is the beginning of the formation of our sun and, consequently, of all the planets and celestial bodies that orbit the king star.

How did the planets orbiting the sun form?

According to a part of the scientific class responsible for studies and research involving this topic, it is believed that the planets and other stars that we know would have had their beginning from the fragments of dust emitted by the sun. 

What was the sun like during this early phase of its formation?

Studies show that, at first, the sun had a hazy appearance and resembled a flat disk. 

And, during this period, it is believed that the sun had three rings – bands of dust and cosmic gas – similar to those of Saturn.

And these rings probably had a direct influence on the formation of the Earth. Can you imagine? These rings must have given the sun an even greater air of grandeur.

The ring theory is the result of a study that was even led by a Brazilian.

The study involving this theory was published on December 30, 2021 in the journal Nature Astronomy.

This is an online magazine, whose main theme is space, with the publication of research on subjects such as astronomy, astrophysics and planetary science. 

If this theory is correct, it was only much later that the planets and other celestial bodies began to form.

What is the composition of the sun?

According to scientists and astronomers specializing in studies of the sun, the star is composed of two main elements: the majority is hydrogen and then helium.

In addition to these, seven other elements are part of the sun's composition: oxygen, carbon, neon, magnesium, silicon, iron and nitrogen.

Is the sun still undergoing changes today?

Yes. The sun continues to undergo changes and should continue to undergo changes as long as it exists, since solar activity itself never stops.

NASA reported that the star has entered a new solar cycle

Did you know that the sun stops for a real cycle change from time to time? That's what NASA reported.

Recently, the space agency reported that the star is going through a change of cycle.

This change, which, according to data obtained by researchers, occurs approximately every 11 years, consists of the inversion of the star's magnetic poles. 

With this movement, the star's north and south poles reverse.

According to scientists at NASA and the National Oceanic and Atmospheric Administration, this would be considered the beginning of the 25th solar cycle.

During these cycles, there are times when the sun is more active, others less so. During these more “agitated” periods, more sunspots cross its surface.

And the result of this is solar flares, such as coronal mass ejections and the release of charged particles and radiation throughout the solar system.

Here on Earth, this type of phenomenon can be felt in a number of ways.

These include everything from the northern lights to possible interference in the planet's satellite system and fluctuations in our electrical grid. 

To this day, scientists are still unable to predict the intensity of the effects of these cycle changes. 

Will the sun ever end?

Yes. Like everything in life, the sun's cycle will have a beginning, middle and end. But don't worry, we don't need to worry about that.

If we were to compare the sun to a human being, we could say that the star is in a phase equivalent to middle age.

According to scientists and astronomers, it is estimated that the “death” of the sun will take a long time to happen. It is likely that the sun will only come to an end in a few billion years.

But before that end comes, the sun must expand and 'swallow' planets like Mercury, Venus and Earth. 

Curiosities about the sun

Of course, a star as powerful and ancient as the Sun has countless interesting facts about its history. We have listed some of them here.

• Sunlight takes a little over 8 minutes to reach here.

• The sun travels at about 220 kilometers per second and is between 24,000 and 26,000 light years from the galactic center.

• Taking into account its active time, the sun can be considered to be in 'middle age'.

• The Sun has currently burned approximately half of its hydrogen reserves. Despite this, the star still has enough hydrogen to burn for another 5 billion years.

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