Kepler Orbit Lab
Vary semimajor axis and eccentricity, then inspect periapsis, apoapsis and orbital period.
Period1.00 y
Periapsis0.65 AU
Apoapsis1.35 AU
Interactive model — simplified for intuition, not precision ephemerides.
Concepts in this lab
ellipseeccentricityperiodarea law
Connected topic
Open lessonKepler laws
A complete introduction to Kepler laws within Keplerian orbits, linking observations, physical models, history and modern applications.