Animation must be based on data obtained by JWT spectroscopy and telemetry
K2-18B exoplanet atmospheric gases found : H₂O, CO₂, C₂H₄, ....HCN....
More info :
How to get Spectroscopy data using prism light color spectrum splitter
exoplanet passing will provide different splitted color spectrum
Difference between these colors spectrum is the exoplanet atmospheric chemical gas composition