The planet, Kepler-1658b, will soon be engulfed in the flames of its own sun.
, discovered the exoplanet using the planet-hunting Kepler space telescope, which launched into space in 2009.
Kepler-1658b is a hot Jupiter planet, meaning it naturally has a close orbit to its host star. To be precise, Kepler-1658b is located about an eighth of the distance between the Sun and Mercury.Astonishingly, the new study shows how the scientists calculated that Kepler-1658b's orbital period is decreasing by an incredibly slow rate of roughly 131 milliseconds per year.
All of these observatories captured transits, which is the term used for the amount of time it takes a planet to cross between its host star and Earth, leading to a very slight dimming in the light received from the star. The scientists point out that the orbital decay of Kepler-1658b is caused by tidal forces between the planet and its host star, causing it to slowly travel inward.
"Now that we have evidence of inspiraling of a planet around an evolved star, we can really start to refine our models of tidal physics," Vissapragada says. "The Kepler-1658 system can serve as a celestial laboratory in this way for years to come, and with any luck, there will soon be many more of these labs."
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