The phenomenon that anticipates the death of our Sun

The phenomenon that anticipates the death of our Sun

A new finding throws clarity on the future of the Sun and the structural changes that it will suffer until its death.

None of us will live to contemplate the death of the Sun. Moreover, it is not implausible to venture that it is possible that no human being will come to witness such an event. The star that constitutes the center of the solar system formed 4650 million years ago and has enough fuel to survive for more than 7000 million years.

The natural process of the life of the Sun, a dwarf star of intermediate age, has been estimated to undergo its transformation into a red giant. Forecasts indicate that our star will increase in size to the point that it will engulf the orbits of Mercury, Venus and Earth.

Subsequently, the Sun will be the victim of its own weight and will sink until it is reduced to its own nucleus and become a white dwarf. The final cooling process will conclude in a black dwarf, a star completely devoid of thermal energy.

The Sun will engulf the Earth’s orbit
Now, astronomers from the National University of Australia have observed for the first time a phenomenon that could confirm all the predictions made about the future of the Sun. The central object of the finding is T Ursae Minoris, a red giant whose size, brightness and temperature has fallen over the past 30 years.

The instability of the star produces a nuclear fission inside, which among astronomers is known as thermal pulses. “These pulses cause drastic changes in the size and brightness of the star that are noticeable over the centuries.

In the case of stars of great antiquity, such as T UMi, thermal pulses enrich the Universe thanks to their bursts of carbon, nitrogen, tin and lead, ”Dr. Meridith Joyce confirmed in a statement.

T MUi and the Sun could share destiny
The fluctuations in the state of T UMi have initiated a process of transformation to a dwarf star that can last hundreds of thousands of years. The observations have managed to determine the date of birth of the star about 1.2 billion years ago and its location more than 3000 light years from Earth.

This finding has an incalculable value for the study of the evolution of the stars. The results obtained will allow astronomers to have a solid foundation on which to structure their predictions about the future of the Sun in the coming decades.

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