Mercury

Mean Radius

2,439.7 km

Gravity

3.7 m/s²

Orbital Period

88.0 d

Distance

0.387 AU

Temperature

440 K

Physical Properties

Mean Radius2,439.7 km

Mass3.3011 × 10^23 kg

Surface Gravity3.7 m/s²

Density5.427 g/cm³

Escape Velocity4.25 km/s

Mean Temperature440 K (167°C)

Axial Tilt0.034°

Rotation Period1407.60 h

AtmosphereNone

Ring SystemNone

Orbital Elements (J2000)

Semi-major Axis0.387099 AU

Eccentricity0.20563069

Inclination7.00487°

Asc. Node (Ω)48.33167°

Arg. Perihelion (ω)29.12478°

Mean Anomaly (M₀)174.79252°

Orbital Period87.969 days

Perihelion0.307 AU

Aphelion0.467 AU