Micro Solar System

Extremely simple solar system simulation. Only includes the Sun, Mercury, Venus, Earth, the Moon, and Mars. Speeds and distances are to scale! Sizes are not.

• Click to center an object
• Scroll to zoom

Might help explain Mars' apparent retrograde motion (click Earth to center it and observe Mars' motion as it gets closer).

P.S. Something fun to try: Movement is calculated in real time. Try opening the console with Ctrl+Shift+J and increasing the mass of the Sun by typing bodies[0].mass *= 1.5