Celestial Mechanics

Compute the orbital period of a massive body orbiting another:

Kepler's third law, 4 solar masses, 5 Earth masses, 2.5 AU

Interactively compute the orbital speed of a body:

circular orbit speed

Visualize the relation between the eccentric and true anomaly:

mean anomaly 85 degrees eccentricity 0.6

Compute locations of Lagrange points:

Lagrange points Earth and Moon

Investigate the relationship between orbital distance and phase:

orbital radius with eccentricity 0.7 and semimajor axis 17.8 AU