Mercury
Rocky planet, hot orbiting Sun
The model shows a real map of the planet, put together from spacecraft images. Drag it to look at every side, zoom with the buttons, with two fingers or with Ctrl and the mouse wheel.
Map: Solar System Scope, CC BY 4.0.
Planet
- Radius
- 0.383 × Earth
- Mass
- 0.0553 × Earth
- Density
- 5.43 g/cm³
- Equilibrium temperature
- 440 K (166 °C)calculated
- Starlight received
- 6.68 × Earthcalculated
“Calculated” marks values that were derived from other measurements instead of being measured. “Minimum mass” means that only a lower limit is known, the true mass may be higher. The equilibrium temperature ignores any atmosphere, so the surface can be much warmer.
Orbit
- Orbital period
- 88 days
- Distance from the star
- 0.387 AU
- Eccentricity
- 0.206
1 AU is the distance between Earth and the Sun. An eccentricity of 0 is a perfect circle.
Host star: Sun
- Spectral type
- G2 V
- Temperature
- 5,772 K
- Radius
- 1 × Sun
- Mass
- 1 × Sun