description HD 82943 b Overview
HD 82943 b is a giant exoplanet orbiting the G-type star HD 82943, approximately 89 light-years from Earth. It was identified in 2001 through radial-velocity observations made with the CORALIE spectrograph at La Silla Observatory in Chile. The planet belongs to a multi-planet system and participates in a 2:1 mean-motion resonance with the outer planet HD 82943 c.
help HD 82943 b FAQ
How was HD 82943 b discovered?
HD 82943 b was identified through radial-velocity measurements made with the CORALIE spectrograph at La Silla Observatory in Chile. The discovery was reported in 2001.
What kind of planet is HD 82943 b?
HD 82943 b is a giant exoplanet orbiting the G-type star HD 82943. It is one of the two known giant planets in the system, alongside HD 82943 c.
How far away is HD 82943 b?
The HD 82943 system is approximately 89 light-years from Earth. The planet is detected indirectly because its gravity produces measurable motion in the host star.
Is HD 82943 b in orbital resonance with another planet?
Yes. HD 82943 b and HD 82943 c are in a 2:1 mean-motion resonance, meaning their orbital periods follow an approximate two-to-one relationship.
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