Disclaimer: Beginner experimental tool — results may not be accurate. For educational use only.
What is this calculator? (Click to expand)▼
This tool lets you experiment with real orbital mechanics.
• Semi-major axis controls the overall size of the orbit. • Eccentricity controls how stretched/elliptical the orbit is.
Definitions: • Orbital Period: Time for one complete orbit. • Periapsis: Closest point to the central body. • Apoapsis: Farthest point from the central body. • Velocity at periapsis: Speed at the closest point (fastest in elliptical orbits).