KuiperBelt
The Structure of the Kuiper Belt: Size Distribution and Radial Extent, Brett Gladman et. al.
Bottom of page 1065: The disk mass in the observed region out to ≈ 60 AU is ≈ 0.1 Mearth (6e23 kg), only weakly dependent on the roll-over size and radial distribution.
The Kuiper starts at approximately 30 AU and is constrained by observability. A 1.5 g/m2, 50 AU Dyson shell ( 7.46E9 km, 7e20 km2 ) uses 1e24 kg of ice and other materials; that is cut in half if the shell uses front-side IR filtering.
|
Pluto |
Eris |
|
Aphelion AU |
49.3 |
97.7 |
52.8 |
Perihelion AU |
29.7 |
38.6 |
37.9 |
Avg Orbital speed m/s |
4670 |
3430 |
4419 |
Orbital period Gsec |
7.82 |
17.6 |
9.75 |
Inclination degrees |
17.4 |
44.04 |
29 |
Radius km |
1190 |
1163 |
715 |
Mass kg |
1.3e22 |
1.66e22 |
|
Mass Earths |
0.0022 |
0.0028 |
|
Escape m/s |
1210 |
1380 |
|
Rotation period sec |
5.52e5 |
|
|
Rotation speed m/s |
13 |
|
|
Axial tilt degrees |
120 |
|
|
Aphelion Velocity m/s |
|||
Perihelion V m/s |