Saturnian Rings Fact Sheet


[Saturn's rings]

Rings of Saturn

                         Radius   Radius/        Optical       Albedo     Thickness    Surf. Density   Eccentricity     
                          (km)     Eq. radius     Depth                      (m)         (g/cm2)
   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         173,200      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.


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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: Ed Grayzeck, edwin.j.grayzeck@nasa.gov
V1.0, 17 July 1995
Last Updated: 13 October 2015, DRW