![Figure caption: The transmission spectrum of Jupiter during the penumbra (a) and the umbra (b)phases. Gray shaded regions mark the deeply absorbed telluric bands of H2O, which cannot be observed from the ground. The locations of the major CH4 absorption b Figure caption: The transmission spectrum of Jupiter during the penumbra (a) and the umbra (b)phases. Gray shaded regions mark the deeply absorbed telluric bands of H2O, which cannot be observed from the ground. The locations of the major CH4 absorption b](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/news/resultados153_168.jpg?itok=aG2RpWEM)
Currently, the analysis of transmission spectra is the most successful technique to probe the chemical composition of exoplanet atmospheres. However, the accuracy of these measurements is constrained by observational limitations and the diversity of possible atmospheric compositions. Here, we show the UV-VIS-IR transmission spectrum of Jupiter as if it were a transiting exoplanet, obtained by observing one of its satellites, Ganymede, while passing through Jupiter's shadow, i.e., during a solar eclipse from Ganymede. The spectrum shows strong extinction due to the presence of clouds
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