Along with the C Ring, which was discovered in 1850 and is similar in character to the Cassini Division, these regions constitute the main rings. The main rings are denser and contain larger particles than the tenuous dusty rings. The latter include the D Ring, extending inward to Saturn's cloud tops, the G and E Rings and others beyond the ...

2017年11月13日 · Saturn's C ring is home to a surprisingly rich array of structures and textures. In this image, a bright and narrow ringlet located toward the outer edge of the C ring is flanked by two broader features called plateaus.

One of Saturn's most prominent features is the set of rings that encircle the planet. In the past few years, we've discovered that ALL of the major planets (Jupiter, Saturn, Uranus, and Neptune) have ring systems, and they're all different. Saturn has the largest and most spectacular system of rings, though -- the others aren't as easy to see.

2007年1月16日 · Both luminous and translucent, the C ring sweeps out of the darkness of Saturn’s shadow and obscures the planet at lower left. The ring is characterized by broad, isolated bright areas, or “plateaus,” surrounded by fainter material.

Saturn’s C ring is home to a surprisingly rich array of structures and textures (see also PIA21618). Much of the structure seen in the outer portions of Saturn’s rings is the result of gravitational perturbations on ring particles by moons of Saturn.

2005年8月29日 · Saturn’s rings make up an enormous, complex structure. From edge-to-edge, the ring system would not even fit in the distance between Earth and the Moon. The seven main rings are labeled in the order in which they were discovered. From the planet outward, they are D, C, B, A, F, G and E. The D ring is very faint and closest to Saturn.

2011年3月31日 · In August 2009 the Sun illuminated Saturn’s rings from almost exactly edge-on, revealing a subtle corrugation that extends across the entire C ring. This corrugation’s amplitude is 2 to 20 meters a...

2004年12月7日 · Saturn's inner C ring spreads across the field of view, showing the characteristic plateau and wave-like structure for which it is famed. The center of this image shows an area approximately 75,000 kilometers (46,600 miles) from Saturn.

2017年11月13日 · Saturn's C ring is home to a surprisingly rich array of structures and textures (see also PIA21618). Much of the structure seen in the outer portions of Saturn's rings is the result of gravitational perturbations on ring particles by moons of Saturn. Such interactions are called resonances.

2014年10月1日 · We systematically examine all of the noncircular features in the C ring, refine the eccentricities, precession rates and width variations of the known eccentric ringlets, identify connections between several noncircular gap and ringlet edges and nearby satellite resonances, and report the discovery of a host of free normal modes on ring and gap ...