Saturn’s moon Rhea is in the centre of the frame, as two moons move past it. Mimas is the (apparently) slower-moving moon; Enceladus moves more rapidly through the field of view. Photographed by Cassini, 27 January 2006.
Today’s gif is on a similar theme to yesterday’s. Titan is in the foreground, utterly dwarfing Janus, which moves behind it, just to the left as seen here of Saturn’s rings. Photographed by Cassini, 2 June 2006.
Saturn’s moon Pandora, just outside the F Ring, is held in the centre of the frame; Epimetheus moves behind it. It’s a pity the sequence ended where it did – it would have been fun to watch Pandora as it moved to the right as seen from this perspective.
Saturn’s moon Dione is held in the centre of the frame; Tethys moves behind it. Photographed by Cassini, 6 December 2010.
This is one of Cassini’s longer satellite mutual event sequences, and even moreso than usual you can see the rotation of the “stationary” moon (Dione in this case) when the gif jumps from the end to the start.
A companion to yesterday’s gif: Deimos (small) and Phobos (large), photographed by Mars Express, 9 August 2011. Whereas yesterday’s post showed a mutual event with these two moons in full phase, here they are crescents.