Jupiter's Great Red Spot (1995, WFPC2)
The semi-major axis of Jupiter's orbit about the Sun is 5.2 astronomical units (483 million miles or 778 million km).
The planet has a diameter of roughly 88,789 miles (142,984 km) at the equator.
The Jupiter image is from HST proposals 5313 PI: R. Beebe (New Mexico State University), M. Belton (NOAO/AURA), C. Cunningham (Institute for Space and Terrestrial Science), P. Gierasch (Cornell University), A. Ingersoll (Caltech), G. Orton (NASA Jet Propulsion Laboratory), J. Pollack (NASA Ames Research Center), and K. Rages (SETI Institute)
F410M, F555W, and F673N