The 'dead' sun will look like this

A star's "death" period allows us to imagine what comes to the Sun for several billion years.

One day, the sun will burn everything on earth. This gloomy prospect is still several billion years away and none of us have the opportunity to see it. However, a similar event is happening in the universe.

An international group of scientists observed the "death" of T Ursae Minoris (T UMi) , an object like our sun but older and in a giant bulge before it died. lost.

The sun will also be in a state of enlargement, burning the surrounding walls before cooling.(Photo: phys.org).

"This is one of those rare opportunities when people can observe the signs of aging of a star, " said Meridith Joyce, an astronomer at the Australian National University (ANU).

Joyce, together with astronomers from Hungary, published the study of the event in the Astrophysical Journal.

Joyce explained that our Sun and T UMi had the same kind of doom: bulging into a giant fireball before collapsing .

For billions of years, the sun will be in the same state as T UMi, then expand into a giant glowing halo before it fades away and leave a relatively small and cool object.

"It will become much larger when it comes to the destruction, devouring Venus, Mercury and possibly the earth in the process, before shrinking into a white dwarf , " she said.

T UMi is 3,000 light-years away from the Earth and has undergone a series of transformations over several million years when it switched from a powerful giant star to a white dwarf.

"The vibrations cause a dramatic, rapid change in the size and brightness of the star, which can be observed in a few centuries," Joyce explained, adding that the star has become smaller and dimmer. more and colder in the past three decades.

"We believe the star is entering one of its final stages of transformation , " the expert said.

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