Stunning Flyover Videos of Saturn’s Moons

Article written: 20 Aug , 2010
Updated: 20 Jan , 2016
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Video

Saturn’s moons as you’ve never seen them before! By day, Dr. Paul Schenk works at the Lunar and Planetary Institute mapping the topography and geology of the moons of Saturn and Jupiter, as well as the icy bodies of the outer solar system. But because “it’s just plain cool,” he has created some flyover videos of Saturn’s satellites, using data from the Cassini spacecraft. Very cool, indeed! Above is a close-up, 3-D look at the walnut-shaped moon Iapetus. Scientists don’t know why there is a ridge along the moon’s equator, but in 2007, Cassini acquired a strip of color and stereo images along the ridge, and Schenk has created a flyover which shows the contrast in color and topography. There are “sharp peaks 15 to 20 kilometers above the surrounding dark cratered plains,” Schenk writes. “These are among the highest peaks in the Solar System. Patches of bright pure water ice can be seen flanking these dark peaks, which have the brightness of soot.”

And there’s more! Below is one of my favorites from Schenk’s collection of flyover videos, 3-D views of Inktomi, a very young crater on the moon Rhea.

Schenk’s videos are based on Cassini orbiter stereo and color imaging data. “Basically stereo image pairs or mosaics are calibrated and formatted and then a computer algorithm is applied which measures the displacement of features from which their heights are calculated,” Schenk told Universe Today, describing how he creates the videos. “When assembled you have a terrain model, voila!”

These videos take awhile to put together. “To run the computer model can take an hour or so or a full day depending on the size of the area and image,” Schenk said. “Typically I require several hours for this to run. The real time consuming part for us with the Cassini data is the calibration and registration of the original raw images. This can take days, if not weeks, to get the calibrations right if you want an accurate map.”

Here’s another spectacular video, of Enceladus, specifically a closeup of Damascus Sulcus, one of the known jet source locations on the moon’s “tiger stripe” fractures:

Schenk just recently had a book published an atlas of Jupiter’s moon, “Atlas of the Galilean Satellites,” published by Cambridge University Press. Description: Celebrating the 400th anniversary of their discovery in January and the announcement of that discovery (Sidereus Nuncius) in March of 1610. Here you will find details about this definitive new Volume, a valuable reference & resource for the Jupiter system.

You can enjoy more of Schenk’s handiwork at his You Tube page, and also at his website.


Hat tip: Stu Atkinson

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6 Responses

  1. stan9fos says

    Excellent choice on the music. Byrne/Eno FTW.

  2. Torbjorn Larsson OM says

    I wish someone would take an Enceladus sulcus flyover and lay some visible movable water eruption interpolations on it. Music should be something wintry.

    computer algorythm is applied

    You know it is an “algorythm” only when applied to music, right?

    This is not an IVAN3MAN_AT_LARGE spelling service, just the funniest english spelling mistake I know of. X3

  3. Member
    Aqua says

    HeyNOW! WAY double extra groovy cool images! Somehow like a memory? I like!

  4. jcolom says

    Am I the only one who saw a Sphinx like face on Iapetus? It appears from :20 to :27

  5. Member
    IVAN3MAN_AT_LARGE says

    Somebody mention me? Oh, well spotted there, Torbjörn! 😉

    JCOLOM, now don’t you start giving Richard C. Hoagland any ideas; we have enough trouble with that ‘face’ on Mars already! 😉

  6. jcolom says

    Noted
    🙂

Comments are closed.