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How to Explore Exoplanet Atmosphere Spectroscopy 3D Explorer
Open the Exoplanet Atmosphere Spectroscopy 3D Explorer, toggle a molecule button, and scrub the transit-progress slider to watch the wavelength-by-wavelength absorption signal from WASP-39b appear only while the planet crosses its star.
- Open https://freetoolonline.com/space-3d/exoplanet-atmosphere-spectroscopy.html and wait for the star and planet to render.
- Press "Water (H2O)", "Carbon dioxide (CO2)" or "Sulfur dioxide (SO2)" to turn on that molecule's real absorption bands on the spectrum panel.
- Drag the transit-progress slider from 0 toward mid-transit and watch the absorption bumps grow, then fade back outside the transit window.
- Press "Jump to mid-transit" to snap straight to the point of maximum atmospheric signal.
- Press "Play orbit" to run the transit automatically.
- Read the facts panel for WASP-39b's published figures and each molecule's real detection status.
Key published figures
| Figure | Value |
|---|---|
| Target studied | WASP-39b, a "hot Saturn" about 700 light-years away |
| Orbital period | 4.055 days |
| Transit depth | about 2.1% |
| Carbon dioxide (CO2) band | about 4.3 micrometers - first definitive exoplanet detection, JWST 2022 |
Next: the when guide or vs alternatives. Open the Exoplanet Atmosphere Spectroscopy 3D Explorer.
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