Circular-orbit model: Explore how centre-to-centre radius changes orbital speed and period when gravity supplies the radial resultant force.

Select Planet

Orbital Parameters

Orbital Radius r = R + h
6,771 km
r = planet radius + altitude
Orbital Velocity v = √(GM/r)
7.67 km/s
Circular orbit velocity
Orbital Period T
92.6 min
T = 2πr / v
Angular Velocity ω
0.00113 rad/s
ω = v / r
Model limits: Results assume a circular orbit, a spherical central body, negligible satellite mass, and no thrust or drag. The radius r is measured from the central body's centre.

Orbit Visualisation