Saturnian Rings Fact Sheet

[Saturn's rings]
Rings of Saturn
  Radius
(km)		 Radius/
Eq. radius		 Optical
Depth		 Albedo
 Thickness
(m)		 Surf. Density
(g/cm2)		 Eccentricity
Saturn Equator 60,268 1.000  
D inner edge 66,900 1.110 10-5  
D outer edge 74,510 1.236 10-5  
C inner edge 74,658 1.239 0.05 - 0.35 0.12 - 0.30 5 1.4 - 5  
Titan ringlet 77,871 1.292   17 0.00026
Maxwell gap/ringlet 87,491 1.452   17 0.00034
C outer edge 91,975 1.526 0.05 - 0.35 0.2 5 2 - 7  
B inner edge 91,975 1.526 0.4 - 2.5 0.4 - 0.6 5 - 10 20 - 100  
B outer edge 117,507 1.950 0.4 - 2.5  
Cassini division   0 - 0.1 0.2 - 0.4 20 18 - 20  
A inner edge 122,340 2.030 0.4 - 1.0 0.4 - 0.6 10 - 30 30 - 40  
Encke gap 133,410 2.214  
Keeler gap 136,487 2.265  
A outer edge 136,780 2.270 0.4 - 1.0 0.4 - 0.6 10 - 30 20 - 30  
F ring 139,826 2.320 0.1 0.6   0.0026
G inner edge 166,000 2.754 10-6   105  
G outer edge 173,000 2.874 10-6  
E inner edge 180,000 2.987 10-6   107  
E outer edge 480,000 7.964 10-6   107   

   Rings, ringlets and gaps of width less than 1000 km are listed by inner edge radius.

For more details on the rings and a full listing of all small ringlets and very faint rings, see the PDS Rings Node Vital Statistics.

Saturn Fact Sheet
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NASA
Author/Curator:
Dr. David R. Williams, dave.williams@nasa.gov
NSSDCA, Mail Code 690.1
NASA Goddard Space Flight Center
Greenbelt, MD 20771
+1-301-286-1258

NASA Official: Dave Williams, david.r.williams@nasa.gov
V1.0, 17 July 1995
Last Updated: 19 April 2022, DRW