Ring Angle

Image source with more information
Credit: NASA/JPL/Space Science Institute

This image is, I am narcissistically going to declare, my birthday present from Cassini, appearing on the internet, as it did, on the 21st November. It's a rather nifty shot of Saturn, it's rings and a few of it's smaller moons.

One interesting thing to note is that Mimas is almost directly to the left of its shadow on Saturn's northern hemisphere, meaning, if you think about where the sun must be, that this photo accurately portrays Saturn's tilt relative to the ecliptic.

Probably. My brain isn't working so well right now.