Tables
Table I
The Principal Elements of the Solar System
| Planet | Mean Distance from Sun | Period of Revolution | Velocity in Orbit (Miles per Second) | Eccentricity of Orbit | Inclination of Orbit to Ecliptic | |
| In Miles | Relative to Earth’s Distance | |||||
| Mercury | 36,000,000 | 0.39 | 87.97 days | 23 to 35 | .2056 | 7°0’ |
| Venus | 67,200,000 | 0.72 | 224.70 days | 21.9 | .0068 | 323 |
| Earth | 92,900,000 | 1.00 | 365.25 days | 18.5 | .0167 | 00 |
| Mars | 141,500,000 | 1.52 | 1.88 years | 15.0 | .0933 | 151 |
| Asteroids1 | ........... | 2.0-5.2 | ......... | ...... | .00 to.40 | 0° to 35° |
| Jupiter | 483,300,000 | 5.20 | 11.86 years | 8.1 | .0484 | 118 |
| Saturn | 886,000,000 | 9.54 | 29.46 years | 6.0 | .0558 | 229 |
| Uranus | 1,781,900,000 | 19.19 | 84.02 years | 4.2 | .0471 | 046 |
| Neptune | 2,971,600,000 | 30.07 | 164.79 years | 3.4 | .0085 | 147 |