3D Solar System Simulator
Wanderstar is a free, interactive 3D model of the Solar System that runs in your browser. Everything orbits on real elliptical paths, so you can see how the Solar System actually moves — not a flat cartoon of circles.
What you can explore
- The Sun and eight planets, each on its real orbit and rotating on its true axial tilt.
- Major moons of Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.
- The asteroid belt between Mars and Jupiter, and the Kuiper Belt beyond Neptune.
- Dwarf planets and comets, including comet tails that grow near the Sun.
How to use it
- Click any body to focus and follow it on its orbit.
- Play or scrub time from hours to years per second, or jump to any date.
- Switch scale modes between a physically faithful "real scale" and a readable "visible" scale.
- Toggle layers — orbits, labels, the asteroid belt, the habitable zone and more.
When you find a view you like, use Share this view to copy a link that reproduces it exactly.
Why real orbits matter
Most textbook diagrams draw the planets as evenly spaced circles. Real orbits are ellipses: planets move faster when they are closer to the Sun and slower when farther away, and the distance between two planets is constantly changing. Wanderstar shows this honestly, which makes concepts like opposition, retrograde motion and launch windows click into place. Learn more in Keplerian orbits explained.