This is a small program written in C, using OpenGL which renders all the planets in the solar system as well as their moons.

• As you'd expect planets rotate the sun
• Likewise moons rotate planets
• Planets orbits and radii are scaled slightly to make them more visible
• Stars read from HYG database and so are in realistic positions
• Can toggle asterisms
• Names displayed above celestial body
• Planets are textured
• Free camera
• Point light from sun's centre casts shadows on planets from their moons

• Tweak scales slightly - perhaps give up on realism completely and make it prettier
• Rewrite sun shader to be a bit more exciting