The 8 Planets of Our Solar System
This is your complete planetary fact sheet for the solar system — real NASA data for all eight planets, with mass, diameter, distance from the Sun, and moons compared side by side in the table below. From scorching Mercury to frigid Neptune, the eight planets span an incredible range of sizes, temperatures, and conditions.
The inner solar system contains four rocky planets with solid surfaces. Beyond the asteroid belt, two massive gas giants dominate the middle solar system, while two ice giants lurk in the outer reaches. Select any planet below to explore its full profile.
Diameter: 4,879 km
Moons: 0
Diameter: 12,104 km
Moons: 0
Diameter: 12,756 km
Moons: 1
Diameter: 6,792 km
Moons: 2
Diameter: 142,984 km
Moons: 95
Diameter: 120,536 km
Moons: 146
Diameter: 51,118 km
Moons: 28
Diameter: 49,528 km
Moons: 16
Planet Comparison Table
| # | Planet | Type | Mass (kg) | Equatorial diameter | Distance (AU) | Moons |
|---|---|---|---|---|---|---|
| 1 | Mercury | Rocky | 3.30 × 10²³ kg | 4,879 km | 0.387 | 0 |
| 2 | Venus | Rocky | 4.87 × 10²⁴ kg | 12,104 km | 0.723 | 0 |
| 3 | Earth | Rocky | 5.97 × 10²⁴ kg | 12,756 km | 1 | 1 |
| 4 | Mars | Rocky | 6.42 × 10²³ kg | 6,792 km | 1.524 | 2 |
| 5 | Jupiter | Gas giant | 1.898 × 10²⁷ kg | 142,984 km | 5.203 | 95 |
| 6 | Saturn | Gas giant | 5.68 × 10²⁶ kg | 120,536 km | 9.537 | 146 |
| 7 | Uranus | Ice giant | 8.68 × 10²⁵ kg | 51,118 km | 19.19 | 28 |
| 8 | Neptune | Ice giant | 1.02 × 10²⁶ kg | 49,528 km | 30.07 | 16 |
Source: NASA Planetary Fact Sheets (nssdc.gsfc.nasa.gov)
Solar System Snapshot
Rocky Planets
Gas Giants
Ice Giants
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