Extended Data Fig. 2: Mass - radius diagram for giant planets like HD 149026b. | Nature

Extended Data Fig. 2: Mass - radius diagram for giant planets like HD 149026b.

From: High atmospheric metal enrichment for a Saturn-mass planet

Extended Data Fig. 2: Mass - radius diagram for giant planets like HD 149026b.The alt text for this image may have been generated using AI.

The points that are bolded represent planets that are within 20% of HD 149026b’s mass and 50% of its irradiation. Saturn’s position in the diagram is indicated by the “S”. HD 149026b is indicated by the diamond-shaped point. It stands out as being among the smallest planets for its mass despite being highly irradiated. The most similar planet is K2-60b (the point to the right and slightly down from HD 149026b), but it receives just one third of the flux that HD 149026b does. HD 149026b is smaller than Saturn despite receiving >105 times more irradiation. Error bars are 1σ uncertainties.

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