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An extrasolar planet like Jupiter was discovered around dead stars

BingMag.com An extrasolar planet like Jupiter was discovered around dead stars

Scientists have observed an extrasolar planet like Jupiter orbiting a dead star that once looked like the Sun.

According to an article in the journal Nature, a white dwarf 6,500 light-years away represents a glimpse of what is to happen to the solar system in another 5 billion years.

When a yellow dwarf star, like the sun, runs out of helium, it becomes much larger and, turning into a red giant, burns the planets in its inner orbits, which in the case of the solar system include Mercury, Venus, Earth and Mars.

  • Scientists found new evidence of when and how the sun died

then due to their internal gravity A white dwarf, a comet star, becomes about the size of Earth and about half its original mass. Although the fate of inner stars is tied to extinction, scientists are not sure exactly what will happen to distant planets.

About 1.4 times the size of Jupiter orbiting in a Jupiter-like orbit around a white dwarf commune with about 60 percent of the Sun's mass. Scientists made the discovery using a method called gravitational lensing. They did so based on Einstein's general relativity, and it became possible when the target and a massive object came closer to Earth. In this case, the closer object bends the subject's light, allowing scientists to observe it with a telescope.

The team tried to find the star, but eventually concluded that the star, in The truth is that a white dwarf is very weak and cannot be directly observed. Scientists have already seen a Jupiter-like planet around a white dwarf, but its orbit was much closer and therefore not a great example for the solar system.

Based on new findings from long-orbiting planets, it is likely Most of the inner planets are common in the universe. It also shows that some objects in the solar system may survive the death of the sun.

David Bennett, author of a recent article, said: It is closer. But if humanity were to migrate to Jupiter or Saturn's moons before the sun engulfed the earth in the process of becoming a red giant, we would still be in orbit around the sun. However, we cannot depend on the heat of the sun as a white dwarf for long.


Source: Engadget

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