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Illustration of Exoplanet Orbiting the Star HD 189733

Illustration of Exoplanet Orbiting the Star HD 189733
This illustration shows the Jupiter-sized planet HD 189733b and its parent star. Hubble takes a spectrum of the star HD 189733 and the fully illuminated planet. By subtracting the star's spectrum from the combined spectrum, the spectrum of the planet is obtained. Astronomers now confirm that the planet has an atmosphere containing carbon dioxide. Life as we know it does not exist there, however, because it is just too hot.
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    HD 189733b
  • Release Date
    December 9, 2008
  • Science Release
    Hubble Finds Carbon Dioxide on an Extrasolar Planet
    Read the release
  • Credit
    NASA, ESA, and A. Feild (STScI)

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Details

Last Updated
Mar 28, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

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