Mars is 1.52 AU from the Sun. It's the outermost of the terrestrial planets before we reach planetoids and then gas giants. So 1.52 AU radius, 3.04 AU diameter.
All of the terrestrial planets are within 1.52 AU of the Sun. All of the gas giants are greater then 5 AU of the sun. The relationship is that most of the terrestrial planets are very close to the sun while gas giants are much further away.
Mercury from the sun 57,910,000 km (0.38 astronomical units), closest to the sun.
Radar was reflected off the surfaces of nearby planets whose distances are known in astronomical units.
Pluto is approximately 39.5 Astronomical Units from the sun. Whereas the Earth is around1.5 AU from the sun. That is a distance fetween the two planets of around 38 Astronomical Units (AU).
Mercury--0.387 astronomical units Venus--0.723 astronomical units Earth--1.0 astronomical units Mars--1.524 astronomical units Jupiter--5.203 astronomical units Saturn--9.529 astronomical units Uranus--19.19 astronomical units Neptune--30.06 astronomical units Pluto--39.53 astronomical units Please note that these are all mean distances, and the actual distance will vary as to the location of the specific planet in its specific orbit.
AU - Astronomical units - Distance from the Earth to the Sun. Approx 93 million miles
1.93 astronomical units is 288,723,890 kilometers.
38 astronomical units is about 5,684,719,086 kilometers.
4 astronomical units = 371,822,485 miles
29 astronomical units = 4,338,338,250 kilometers.
0.82 astronomical units is 122,670,254 kilometers.
19.13 AU