Astrogeology Research Program |
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Gazetteer of Planetary Nomenclature |
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System | Name |
Distance (km) from planet's center |
Radial Width (km) |
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Rings of Jupiter | |||
1979 J1R ("Halo") | 100,000 - 122,800 | 22,800 | |
1979 J2R ("Main") | 122,800 - 129,200 | 6,400 | |
1979 J3R ("Gossamer") | 129,200 - 214,200 | 85,000 | |
Rings of Saturn
Divisions are the separations between named rings, and gaps are the spaces within named rings. In general, divisions are large, gaps are small. |
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D | 67,000 - 74,490 | 7,500 | |
C | 74,490 - 91,980 | 17,500 | |
Colombo Gap | 77,800 | 100 | |
Maxwell Gap | 87,500 | 270 | |
Bond Gap | 88,690-88,720 | 30 | |
Dawes Gap | 90,200-90,220 | 20 | |
B | 91,980 - 117,500 | 25,500 | |
Cassini Division | 117,500 - 122,050 | 4,700 | |
Huygens Gap | 117,680 | 285-440 | |
Herschel Gap | 118,183-118,285 | 102 | |
Russell Gap | 118,597-118,630 | 33 | |
Jeffreys Gap | 118,931-118,969 | 38 | |
Kuiper Gap | 119,403-119,406 | 3 | |
Laplace Gap | 119,848-120,086 | 238 | |
Bessel Gap | 120,236-120,246 | 10 | |
Barnard Gap | 120,305-120,318 | 13 | |
A | 122,050 - 136,770 | 14,600 | |
Encke Gap | 133,570 | 325 | |
Keeler Gap | 136,530 | 35 | |
Roche Division | 136,770-139,380 | 2600 | |
F | 140,224 | 30-500 | |
G | 166,000 - 174,000 | 8,000 | |
E | 180,000 - 480,000 | 300,000 | |
Rings of Uranus | |||
Zeta (1986 U2R) | 39,600 | 3,500 (plus 5,000 km extension inwards) | |
6 | 41,840 | 1-3 | |
5 | 42,230 | 2-3 | |
4 | 42,580 | 2-3 | |
Alpha | 44,720 | 7-12 | |
Beta | 45,670 | 7-12 | |
Eta | 47,190 | 0-2 | |
Gamma | 47,630 | 1-4 | |
Delta | 48,290 | 3-9 | |
Lambda (1986 U1R) | 50,020 | 1-2 | |
Epsilon | 51,140 | 20-100 | |
Nu (R/2003 U 2) | 67,300 | 3,800 | |
Mu (R/2003 U 1) | 97,700 | 17,000 | |
Rings and ring arcs of Neptune | |||
1989 N3R Galle | 41,900 | 15 | |
1989 N2R Leverrier | 53,200 | 15 | |
Lassell | 55,400 | - | |
Arago | 57,600 | - | |
1989 N1R Adams | 62,930 | < 50 | |
Liberte ("Leading" arc) | 62,900 | - | |
Egalite ("Equidistant" arc) | 62,900 | - | |
Fraternite ("Following" arc) | 62,900 | - | |
Courage (arc) | 62,900 | - |