Saturn's Rings in Infrared Light
The semi-major axis of Saturn's orbit about the sun is 9.5 Astronomical Units (A.U.) or roughly 1.4 billion km.
The planet (without rings) has a diameter of roughly 75,000 miles (120,000 km) at the equator.
This image was created from HST data from proposal 9354: E. Karkoschka and M. Tomasko (University of Arizona)
0.73 micrometer, 0.89 micrometer, and 0.95 micrometer
NASA and E. Karkoschka (University of Arizona)
Infrared: 0.65-0.95 micrometers