Solar System Simulator
Watch the planets orbit the Sun. Speed up time, zoom through space, and explore each world.
Day 0
Simulation running
Simulation running
Drag to pan • scroll/pinch to zoom • tap a planet
SelectedSun
Distance—
Orbital period—
Year progress—
Is this solar system simulator free?
Yes — completely free. It runs entirely in your browser with no sign-up and no account. Nothing is uploaded anywhere.
Are the planet sizes and distances to scale?
No. Distances and sizes are intentionally stylized so every planet stays visible on the screen. Orbital periods use real day lengths, but positions are simplified for a clear, readable view.
Can I slow down or speed up the planets?
Yes. Use the Time speed slider to run from 0 (stopped) to 5 days per second, or zoom in/out and pause to explore any moment.
Does this use real planetary orbital data?
The planets follow elliptical orbits with real orbital periods and eccentricities, but it is an educational visualization, not a precise ephemeris.