Wed. Oct 20th, 2021


Scientists have seen an exoplanet like Jupiter orbiting a dead star that was once like our sun, New York Times Reported. According to a research paper in the journal Nature, The White dwarf About 500 light-years away, the stars and planets provide a foretaste of what will happen to our own solar system in about 5 billion years.

When a yellow dwarf star like our Sun runs out of its helium supply, it expands to a The red monster And burns the planets inside it (Farewell, Earth, Mars, Venus and Mercury). It is then compressed from its own gravity by a white dwarf, a slow Earth-sized star with half of its original mass. Although the fate of the inner planets has been sealed, scientists are not sure what will happen to planets like Jupiter and Uranus.

Using the Cake II telescope at the WM Cake Observatory in Hawaii, a team of researchers orbited a planet in the shape of Jupiter, a white dwarf star (about 60 percent the size of the Sun). Orbit. They discovered it using a technique called gravitational microlensing (thanks, Einstein), when a target and a nearest star were aligned with the Earth. The nearest star bends light from the subject, allowing scientists to observe it with a telescope.

The team tried to find the corresponding star on the planet, but in the end came to the conclusion that it must be a white dwarf who could not observe directly. Scientists have previously found a different planet Jupiter around a white dwarf, but its orbit was much closer-so it wasn’t a great analogy for our own solar system.

The search indicates that planets with wide orbits are probably more common than inner planets. It also shows that some of the earth in our solar system may have survived the death of the sun. “The future of the world may not be so bright,” co-author David Bennett said in a statement. If mankind wants to go to the moon of Jupiter or Saturn then the Sun is in its magnificent stage before the Earth fades when it turns red, we will still be in orbit around the Sun, although we as white dwarfs will not be able to rely too much on the Sun’s heat. “

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