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
Saturn Home Page
Notes on the Factsheets
Directory to other Planetary Fact Sheets
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: Ed Grayzeck, edwin.j.grayzeck@nasa.gov
V1.0, 17 July 1995
Last Updated: 13 October 2015, DRW