It's a slow death. The planet WASP-18b has maybe a million years to live, said planet discoverer Coel Hellier, a professor of astrophysics at the Keele University in England. Hellier's report on the suicidal planet is in Thursday's issue of the journal Nature.So if the planet has "maybe a million years" left, how will there be enough change in "less than a decade" to make any answers apparent?"It's causing its own destruction by creating these tides," Hellier said.
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The planet circles a star that is in the constellation Phoenix and is about 325 light-years away from Earth, which means it is in our galactic neighborhood. A light-year is about 5.8 trillion miles.
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Like most planets outside our solar system, this planet was not seen directly by a telescope. Astronomers found it by seeing dips in light from the star every time the planet came between the star and Earth.
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The answer will become apparent in less than a decade if the planet seems to be further in a death spiral, he said.
At the current rate a decade is ~4,000 orbits.
If the rate is substantially faster in a decade that means the planet is spiraling in faster and faster. If it's ~4,010/decade that indicates a longer time remaining than if it's ~8,000
A 2019 dollar will be worth just one of today's pennies.
Kewl.
We'll all be millionaires...