Jupiter's Volcanic Moon Io
In this picture of Io, the mound rising from Io's surface is actually an eruption from Pillan, a volcano that had previously been dormant.
Measurements at two ultraviolet wavelengths indicate that the ejecta consist of sulfur dioxide 'snow, ' making the plume appear green in this false-color image. Astronomers increased the colour contrast and added false colours to the image to make the faint plume visible.
About the Image
|Release date:||20 April 1999, 06:00|
|Size:||293 x 287 px|
About the Object
|Type:||• Solar System : Planet : Type : Gas Giant|
• Solar System : Planet : Satellite
• Solar System Images/Videos
Colours & filters
|260 nm||Hubble Space Telescope|
|340 nm||Hubble Space Telescope|
|410 nm||Hubble Space Telescope|