OBORMOTINDOK.CO.ID.– Astronomers or astronomers estimate that the sun, which is now 4.6 billion years old, will die in another 10 billion years.
The current age of the sun is measured by the solar system objects around the same time as the sun.
The sun, according to astronomers, in 5 billion years will turn into a red giant ball first.
Then the core of the star will shrink, while the outer layer will expand into the orbit of Mars, so that it will melt Earth.
Even more surprising, astronomers estimate that life, including humans on Earth, will become extinct in the next 1 billion years.
All this, because the Sun’s brightness increases by about 10% every billion years.
That increase in brightness will end life on Earth. The oceans would evaporate, and their surface would become too hot to form water.
Using a 2018 computer modeling experiment, astronomers discovered the end of the Sun.
Like 90% of other stars, the Sun will most likely shrink from a red giant to white and then end up as a nebula.
“When a star dies, it ejects a mass of gas and dust, known as its envelope, into space. The shroud can reach half the mass of the star,” said astrophysicist Albert Zijlstra of the University of Manchester in England, one of the authors of the paper.
When the Sun runs out of core material, this makes the ejected envelope shine brightly for about 10,000 years. This is what makes the nebula visible.
Some are so bright that they can be seen from great distances and measure tens of meters.
Nebulae are relatively common throughout the universe and many are observable. Famous examples include the Helix Nebula and the Bubble Nebula. However, 2018 modeling shows that the Sun is around the lower limit of mass for a star that can produce a clearly visible nebula.
In other words, when it dies, our Sun will not produce a nebula that shines as brightly as other nebulae.
“This is a great result. “We now have a way of measuring the presence of stars several billion years old in distant galaxies, which is a very difficult range to measure, we have even discovered what will happen to the Sun when it dies,” he said. Alert, Monday (13/9/2021).(kr)