Rings of Uranus

name distance from centre of planet (km) observed width (km)* equivalent width (km)**

6 41,837 1-2 0.66

5 42,235 2-7 1.23

4 42,571 1-6 1.06

Alpha 44,718 4-11 3.86

Beta 45,661 4-13 3.16

Eta 47,176 1-4 0.64

Gamma 47,627 2-8 3.13

Delta 48,300 3-8 2.69

Lambda 50,026 2-3 0.30

Epsilon 51,149 20-95 42.800

*The range of values reflects real variations with respect to longitude as well as measurement error.

**Equivalent width is the product of the observed width and the fraction of light attenuated and is given for visible light.