| Name. | Sidereal period. | Mean distance from Sun. Millions of miles. | Diameter. Miles. | Surface. Earth=1. | Volume. Earth=1. | Mass. Earth=1. | Density. Earth=1. | Axial Rotation. d. h. m. | Force of gravity. Fall: Ft. in 1 sec. | Velocity in orbit. Miles per hour |
|---|
| SUN | ..... | ..... | 866,200 | 11,946 | 1,305,000 | 332,000 | 0.25 | 25 7 48 | 461 | | |
| | | | | | | | h. m. s. | | | |
| MERCURY | 88 days. | 36 | 3,008 | 0.144 | 0.055 | 0.066 | 1.26 | 24 5 30 | 7 | 107,000 | |
| VENUS | 225 ″ | 67 | 7,480 | 0.891 | 0.841 | 0.782 | 0.92 | 23 21 23 | 14 | 78,000 | |
| EARTH | 365 ″ | 93 | 7,926 | 1.000 | 1.000 | 1.000 | 1.00 | 23 56 4 | 16 | 66,000 | |
| MARS | 687 ″ | 141 | 5,000 | 0.398 | 0.251 | 0.107 | 0.45 | 24 37 23 | 4 | 53,000 | |
| Minor Planets |
| Eros (433) | 1.76 years. | ..... | 18 | Eros is the nearest to the Sun of the Minor Planets, part of its orbit falling between the Earth and Mars. |
| Vesta (4) | 3.6 ″ | 219 | 214 | Vesta is the largest of the Minor Planets. |
| Thule (279) | 8.8 ″ | 396 | ..... | Thule is the most distant from the Sun of the Minor Planets. |
| JUPITER | 11.8 ″ | 483 | 88,439 | 124 | 1,389 | 317 | 0.23 | 9 55 21 | 41 | 29,000 | |
| SATURN | 29.4 ″ | 886 | 75,036 | 89 | 848 | 94 | 0.11 | 10 29 17 | 18 | 21,000 | |
| URANUS | 84.0 ″ | 1782 | 30,875 | 15 | 59 | 14 | 0.25 | ? | 13 | 15,000 | |
| NEPTUNE | 164.6 ″ | 2792 | 37,205 | 21 | 103 | 17 | 0.17 | ? | 12 | 12,000 | |