New planet discovered orbiting star HD 118203 with a known hot Jupiter

1. 8. 2024

New planet discovered orbiting star HD 118203 with a known hot Jupiter

Star system: HD 118203 | Distance from the Sun: 300 light years

The newly found planet is a gas giant located farther from the star. Both planets are aligned with the stars equator, suggesting they likely formed in the same plane and migrated to their current positions.

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Stars Exoplanets

Scientific study

A Testbed for Tidal Migration: the 3D Architecture of an Eccentric Hot Jupiter HD 118203 b Accompanied by a Possibly Aligned Outer Giant Planet external link

Stars mentioned

HD 118203

K0IV, Subgiant

mass: 1.35 M☉

radius: 3 R☉

distance: 300 ly

stars in the system: 1

exoplanets: 2

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	HD 118203 300 ly			Signs of magnetic star-planet interactions in HD 118203. TESS detects stellar variability that matches the orbital period of a close-in eccentric Jupiter-sized companion 30. 1. 2024 (accepted)

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