Orbital & Escape Velocity

Orbital period, circular velocity, and escape velocity

v = √(GM/r) · v_esc = √(2GM/r) · T = 2π√(r³/GM)

Circular orbital velocity

7.672 km/s

7,672.5 m/s

Escape velocity

10.851 km/s

10,850.5 m/s

Orbital period

5,545 s

1.54 h

Gravitational parameter (μ = GM)

3.9859E14 m³/s²

Escape velocity is √2 ≈ 1.414× the circular orbital velocity at the same radius; orbital speed and period both depend only on the central mass and the radius, not on the orbiting object's mass.