Jupiter's Great Red Spot (2014, WFC3/UVIS)
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 proposal 13631 PI: A. Simon (NASA Goddard Space Flight Center), G. Orton (NASA Jet Propulsion Laboratory), J. Rogers (University of Cambridge, UK), and M. Wong and I. de Pater (University of California, Berkeley)
F395N, F502W, and F631N