The "Propellers" of the Rings (2) - HR

This image is a closer view of the A-Ring, showing the radial locations where "Propeller Features" were spotted. The view is approx. 1.800 Km across (such as about 1.100 miles), from top to bottom, and includes a large density wave at the bottom (caused by the moons Janus and Epimetheus), as well as two smaller density waves.
The footprints of the Propellers are between density waves, in bland, quiescent regions of the Ring.

The Propellers appear as double dashes in the two close-up discovery images and they have been circled. The unseen moonlets, each roughly the size of a football field, lie in the center of each structure. These two images were taken during Saturn orbit insertion on July 1, 2004, and are presented here at one-half scale. Resolution in the original images was 52 mt (about 171 feet) per pixel.
The horizontal lines in the image represent electronic noise and do not correspond to any actual Ring features.