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Back Illustration of planet transiting a star and the resulting light curve and spectrum

Illustration of planet transiting a star and the resulting light curve and spectrum


Depicts: HD 209458
Copyright: A. Feild (STScI)

The Hubble Space Telescope detects additional sodium absorption due to light passing through planetary atmosphere as planet transits across star.
Last Update: 1 September 2019
7-Mar-2026 03:41 UT

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