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Astrogeology Research Program |
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| TABLE IV |
| Size and shape parameters of the planets |
| Planet | Mean radius | Equatorial | Polar radius | RMS deviation | Maximum | Maximum |
| (km) | radius | (km) | from spheroid | elevation | depression | |
| (km) | (km) | (km) | (km) |
| Mercury | 2439.7±1.0 | same | same | 1 | 4.6 | 2.5 |
| Venus | 6051.8±1.0 | same | same | 1 | 11 | 2 |
| Earth | 6371.00±0.01 | 6378.14±0.01 | 6356.75±0.01 | 3.57 | 8.85 | 11.52 |
| Mars | 3389.50±0.2 | 3396.19±0.1 | AVG 3376.20±0.1 | 3.0 | 22.64±0.1 | 7.55±0.1 | N 3373.19±0.1 | S 3379.21±0.1 |
| Jupiter* | 69911±6 | 71492±4 | 66854±10 | 62.1 | 31 | 102 |
| Saturn* | 58232±6 | 60268±4 | 54364±10 | 102.9 | 8 | 205 |
| Uranus* | 25362±7 | 25559±4 | 24973±20 | 16.8 | 28 | 0 |
| Neptune* | 24622±19 | 24764±15 | 24341±30 | 8 | 14 | 0 | Pluto | 1195±5 | same | same |
| *The radii correspond to a one-bar surface. |