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Exoplanet GJ 3090 b confirmed to have a retrograde orbit
An international research team led by the University of Geneva has confirmed that the exoplanet GJ 3090 b possesses a retrograde orbit. Located approximately 54 light-years from Earth in the Virgo constellation, the planet is heavily misaligned with the rotation of its host star.
According to findings published in Astronomy & Astrophysics, the planet’s orbital inclination angle reaches approximately 136 degrees, meaning it orbits in the opposite direction of its star’s rotation. This discovery, which included participation from the Institute of Astrophysics of the Canary Islands, challenges current theoretical models of planetary formation, as there are no massive nearby objects to explain such a significant deviation from the standard alignment seen in our solar system.
Entities
GJ 3090 b · HD 189733 b · Institute of Astrophysics of the Canary Islands · University of Geneva