Wie groß ein Planet sein kann: Bei sehr großen Gasriesen kann es schwer zu sagen sein: „Der Nachweis von Schwefel in einem fernen Sternensystem gibt Forschern neue Einblicke in die Planetenentstehung.“ »
https://today.ucsd.edu/story/how-big-can-a-planet-be
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> With its unprecedented sensitivity, JWST is enabling the most detailed study of the atmospheres of these planets, giving us clues to their formation pathways. With the detection of sulfur, we are able to infer that the HR 8799 planets likely formed in a similar way to Jupiter despite being five to ten times more massive, which was unexpected.
Reference: Ruffio, JB., Xuan, J.W., Chachan, Y. et al. Jupiter-like uniform metal enrichment in a system of multiple giant exoplanets. Nat Astron (2026). https://doi.org/10.1038/s41550-026-02783-z