Sepasang planet yang tidak biasa tantang model pembentukan tradisional

Para astronom telah mengidentifikasi sistem planet langka sejauh 190 tahun cahaya dari Bumi yang menampilkan Jupiter panas berbagi orbit dengan mini-Neptunus yang lebih dekat ke bintangnya. Konfigurasi ini dulunya dianggap hampir mustahil. Pengamatan baru dari Teleskop Luar Angkasa James Webb memberikan wawasan baru tentang bagaimana planet-planet tersebut terbentuk.

Sistem yang berpusat pada bintang TOI-1130 ini pertama kali dideteksi pada tahun 2020 menggunakan data dari Transiting Exoplanet Survey Satellite milik NASA. Mini-Neptunus menyelesaikan orbit setiap empat hari sementara Jupiter panas memerlukan waktu delapan hari. Para peneliti mencatat bahwa Jupiter panas biasanya tidak memiliki pendamping di dekatnya karena pengaruh gravitasinya yang kuat.

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