Astronomers spot 'highly eccentric' planet on its way to becoming a hot Jupiter
Astronomers discover planet TIC 241249530 b transitioning to hot Jupiter with eccentric, retrograde orbit. Predicted to evolve fully in 1 billion years. Detected by NASA's TESS satellite, supporting high eccentricity migration theory.
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A team of astronomers from MIT and Penn State University has discovered a planet, TIC 241249530 b, on its way to becoming a hot Jupiter. This planet has a highly eccentric orbit, coming extremely close to its star before slinging far out, in a narrow, elliptical circuit. The planet's orbit is also retrograde, moving in the opposite direction to its star's rotation. Through simulations, researchers predict that in 1 billion years, the planet will evolve into a hot Jupiter, circling its star every few days. This discovery supports the theory of high eccentricity migration, where a planet's orbit evolves over time due to interactions with other celestial bodies. The findings were published in the journal Nature. The planet was first detected by NASA's TESS satellite, showcasing extreme changes in starlight throughout its orbit. This discovery sheds light on the evolution of hot Jupiters and the diverse nature of exoplanets.
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