4 ms·

I'd assume without an atmosphere to diffuse light, the sun is basically a point light for 95% of the Solar System.

• Sharlin 7y ago
  It's a point light infinitely far away. So light rays are parallel, and shadows are exactly the size of the object.
  • tzakrajs 7y ago
    > infinitely
    • Sharlin 7y ago
      Yes, for all intents and purposes.