Rings of Uranus - List of Properties

List of Properties

This table summarizes the properties of the planetary ring system of Uranus.

Ring name Radius (km) Width (km) Eq. depth (km) N. Opt. depth Thickness (m) Ecc. Incl.(°) Notes
ζcc 26 840–34 890 8 000 0.8 ~ 10−4 ? ? ? Inward extension of the ζc ring
ζc 34 890–37 850 3 000 0.6 ~ 10−3 ? ? ? Inward extension of the ζ ring
1986U2R 37 000–39 500 2 500 <2.5 < 10−3 ? ? ? Faint dusty ring
ζ 37 850–41 350 3 500 1 ~ 10−3 ? ? ?
6 41 837 1.6–2.2 0.41 0.18–0.25 ? 1.0 × 10−3 0.062
5 42 234 1.9–4.9 0.91 0.18–0.48 ? 1.9 × 10−3 0.054
4 42 570 2.4–4.4 0.71 0.16–0.30 ? 1.1 × 10−3 0.032
α 44 718 4.8–10.0 3.39 0.3–0.7 ? 0.8 × 10−3 0.015
β 45 661 6.1–11.4 2.14 0.20–0.35 ? 0.4 × 10−3 0.005
η 47 175 1.9–2.7 0.42 0.16–0.25 ? 0 0.001
ηc 47 176 40 0.85 2 × 10−2 ? 0 0.001 Outward broad component of the η ring
γ 47 627 3.6–4.7 3.3 0.7–0.9 150? 0.1 × 10−3 0.002
δc 48 300 10–12 0.3 3 × 10−2 ? 0 0.001 Inward broad component of the δ ring
δ 48 300 4.1–6.1 2.2 0.3–0.6 ? 0 0.001
λ 50 023 1–2 0.2 0.1–0.2 ? 0? 0? Faint dusty ring
ε 51 149 19.7–96.4 47 0.5–2.5 150? 7.9 × 10−3 0 Shepherded by Cordelia and Ophelia
ν 66 100–69 900 3 800 0.012 5.4 × 10−6 ? ? ? Between Portia and Rosalind, peak brightness at 67 300 km
μ 86 000–103 000 17 000 0.14 8.5 × 10−6 ? ? ? At Mab, peak brightness at 97 700 km

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