| Planet |
| These are the 9 planets of the solar system. Do note that Pluto is not always the farthest planet from the sun. Jupiter is the largest planet. Pluto is the smallest. Saturn is the only planet that can float on water, or the only planet less dense. |
Astronomy ---------------- |
| Planet Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto |
| Day 58 day 15 hour 30 minute 31.68 second 243 day 0 hours 26 minutes 5.1 second 23 hour 56 minute 4.096032 second 24 hour 37 minute 22.664064 second 9 hour 55 minute 29.856 second 10 hour 39 minute 22.464 second 17 hour 14 minute 23.712 second 16 hour 6 minute 36 second 6 day 9 hours 17 minute 34.08 second |
| Year 87.9694 days 224.701 days 365.256 days 686.98 days 4,332.589 days 10,759.22 days 30,685.4 days 60,189 days 90,465 days |
| Diameter (at their Equator) 3,032 miles (4,879 kilometers) 7,521 miles (12,104 kilometers) 7,926.68 miles (12,756.776 kilometers) 4,222 miles (6,794 kilometers) 88,846 miles (142,984 kilometers) 74,897 miles (120,536 kilometers) 31,763 miles (51,118 kilometers) 30,775 miles (49,528 kilometers) 1,485 miles (2,390 kilometers) |
| Orbital Velocity 29.76 miles per second (48.3 kilometers per second) 21.77 miles per second (35.1 kilometers per second) 18.51 miles per second (29.79 kilometers per second) 14.99 miles per second (24.12 kilometers per second) 8.12 miles per second (13.06 kilometers per second) 5.99 miles per second (9.64 kilometers per second) 4.23 miles per second (6.81 kilometers per second) 3.37 miles per second (5.42 kilometers per second) 2.95 miles per second (4.75 kilometers per second) |
| Discoverer - - - - - - William Herschel Johann Gottfried Galle Clyde William Tombaugh |
| Date Prehistoric Prehistoric Prehistoric Prehistoric Prehistoric March 13, 1781 September 23, 1846 February 18, 1930 |
| Albedo 0.106 0.65 0.367 0.15 0.52 0.47 0.51 0.41 0.3 |
| Escape Velocity 2.7 miles per second (4.25 kilometers per second) 6.4 miles per second (10.36 kilometers per second) 6.96 miles per second (11.2 kilometers per second) 3.1 miles per second (5.02 kilometers per second) 37 miles per second (59.6 kilometers per second) 22.1 miles per second (35.5 kilometers per second) 13.2 miles per second (21.3 kilometers per second) 14.6 miles per second (23.3 kilometers per second) 0.7 miles per second (1.1 kilometers per second) |
| Distance From Sun (Averaged Out) 35,983,193.067548 miles (57,909,335.8641 kilometers) 67,237,724.2096345 miles (108,208,628.03043 kilometers) 92,955,807.4594369 miles (149,597,871 kilometers) 141,635,834.267869 miles (227,940,780.06399 kilometers) 483,633,263.724182 miles (778,332,291.17493 kilometers) 886,683,137.961778 miles (1,426,978,187.97996 kilometers) 1,783,951,153.71896 miles (2,870,991,085.53069 kilometers) 2,794,351,034.94465 miles (4,497,072,071.98197 kilometers) 3,674,487,295.38707 miles (5,913,514,081.9074 kilometers) |
| Atmospheric Composition (Major) 42% Oxygen 29% Sodium 22% Hydrogen 6% Helium 0.5% Potassium 96.5% Carbon dioxide 3.5% Nitrogen 78.084% Nitrogen 20.946% Oxygen 0.934% Argon 0.034% Carbon dioxide 0.00182% Neon 95.32% Carbon dioxide 2.7% Nitrogen 1.6% Argon 0.13% Oxygen 0.08% Carbon monoxide 89.8% Hydrogen 10.2% Helium 96.3% Hydrogen 3.25% Helium 82.5% Hydrogen 15.2% Helium Methane 2.3% 80% Hydrogen 19% Helium 1% Methane Methane and nitrogen |
| This is a chart in comparison to Earth. |
| Planet Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto |
| Mass 0.0553 0.815 1 0.107 317.83 95.162 14.536 17.147 0.0021 |
| Diameter 0.383 0.949 1 0.533 11.21 9.45 4.01 3.88 0.187 |
| Gravity 0.378 0.907 1 0.377 2.364 0.916 0.8890 1.12 0.059 |
| Distance From Sun (Astronomical Unit) 0.38710 0.72333 1 1.52369 5.20283 9.53876 19.19139 30.06107 39.52940 |
| Inclination 0.01 Degrees 176.71 Degrees 23.43929111 Degrees 25.19 Degrees 3.13 Degrees 26.73 Degrees 97.77 Degrees 28.32 Degrees 118 Degrees |
| Gravity 12.1 feet per second (3.7 meters per second) 29.1 feet per second (8.87 meters per second) 32.1 feet per second (9.78 meters per second) 12.1 feet per second (3.7 meters per second) 75.9 feet per second (23.12 neters per second) 29.4 feet per second (8.96 meters per second) 28.5 feet per second (8.69 meters per second) 36 feet per second (11 meters per second) 1.9 feet per second (0.58 meters per second) |
| Day 58.6462 -243.0185 0.99726963 1.02595676 0.41354 0.44401 -.71833 0.67125 -6.3872 |
| Density 0.984 0.951 1 0.713 0.240 0.125 0.230 0.297 0.317 |