Rings of Saturn

Name	Inner Radius		Outer Radius		Width	Thickness	Mass	Albedo
	km	radii	km	radii	km	km	kg
D	67,000	1.11	74,700	1.24	7,700	?	?	?
C	74,700	1.24	92,000	1.53	17,300	?	1.1 x 10 18	0.25
B	92,000	1.53	117,500	1.95	25,500	0.1-1	2.8 x 10 19	0.65
Cassini Div	117,500	1.95	122,300	2.03	4,800	?	5.7 x 10 17	0.30
A	122,300	2.03	136,800	2.27	14,500	0.1-1	6.2 x 10 18	0.60
Encke gap *	133,400	2. 22	133,700	2.22	300
F	140,300	2.33	140,400	2.33	100	?	?	?
E**	180,000	3.00	480,000	8.00	300,000	1,000	?	?

* The Encke gap lies within the A ring
** The E ring lies outside the Roche Limit