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Jupiter and Io (Cassini)

Spacecraft image of a small moon in front of a large planet

The moon Io orbits Jupiter in this image from NASA’s Cassini spacecraft. Io is similar in size to Earth’s moon. Jupiter and Io appear deceptively close in this image, when in fact the moon is orbiting 217,000 miles from the gas giant planet.

About the Data

  • Instrument
    InstrumentThe science instrument used to produce the data.
    Cassini: Imaging Science Subsystem
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    1 January 2001
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Jupiter and Io
  • Object Description
    Object DescriptionThe type of astronomical object.
    Jovian planet and its satellite
  • Release Date
    July 31, 2020
  • Science Release
    NASA’s Webb Telescope Will Study Jupiter, its Rings, and Two Intriguing Moons
    Read the release
  • Credit
    Image: NASA, NASA-JPL, University of Arizona

Downloads

  • Full Res (For Print), 999 × 959
    tif (993.05 KB)
  • Full Res (For Display), 999 × 959
    png (941.22 KB)

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Details

Last Updated
Aug 28, 2025
Contact
Media

Laura Betz
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
laura.e.betz@nasa.gov

Image Credit

NASA, NASA-JPL, University of Arizona

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