Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
The Bruce Murray Space Image Library

Cassini crosses Saturn's ring plane, February 4, 2007

Filed under pretty pictures, Cassini, amateur image processing, best of, Saturn, animation, Saturn's rings

Go Back

Cassini crosses Saturn's ring plane, February 4, 2007 Twice each orbit, Cassini crosses through the plane of Saturn's rings. This crossing, on February 4, 2007, was from the south to the north, from the lit to the unlit side of the rings. The animation, presented in approximately true color, shows how the rings are (unsurprisingly) much darker when viewed from their unlit side than when viewed from the lit side.

NASA / JPL / SSI / Gordan Ugarkovic

 The most opaque ring, the B ring, which casts the broadest, blackest shadow across the northern face of Saturn, changes most in brightness from lit to unlit side, while the much more transparent C ring, located closer to Saturn than the B ring (and which casts the thin groove-like shadows across Saturn's near-equatorial regions) changes very little in appearance as Saturn crosses the plane. This 11-frame animation was created from frames taken by Cassini's wide-angle camera through red, green, and blue filters; the frames are 20 minutes apart, so the whole animation spans two hours and 40 minutes. During that time, Saturn rotates nearly a quarter turn, which can be seen in the motions of clouds in the northern latitudes. At the very end of the animation, a bright dot -- the moon Enceladus -- appears on the far side of Saturn's rings. In the full-resolution version of the animation (GIF format, 3.2 MB), Epimetheus is also visible, running ahead of, and faster than, Enceladus.

Original image data dated on or about February 4, 2007.

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. For uses not allowed by that license, contact us to request publication permission from the copyright holder: Gordan Ugarkovic


Other Related Images


Leave a Comment:

You must be logged in to submit a comment. Log in now.

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join The Planetary Society

Let’s explore the cosmos together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!