Space Is Big, We Are Tiny: Size Comparision Of The Planets
Planets and stars are created to scale, and have accurate tilt. however the speed at which they rotate is not accurate at all.
Dimensions used (in order presented):
Celestial Body Radius (in km)
Neptune: 25,269 (equatorial) 24,340 (polar)
Uranus: 25,559 (equatorial) 24,973 (polar)
Saturn: 60,268 (equatorial) 54,360 (polar) (not including rings)
Jupiter: 71,490 (equatorial) 66,854 (polar)
Sun: 693,300 km
Betelgeuse 1,323,049,800 km or (950 solar radii)
NML Cygni 2,297,928,600 km or (1650 solar radii)
Debate about largest known star:
NML Cygni is the largest known star, where the radius is reasonably certain.
There are other known stars That may very well be larger, however it is not well established that they actually are, and they may in fact be Smaller. Rather than choosing one of those stars, and just using the upper limit (which would have Dwarfed Betelgeuse), I chose to be more realistic and conservative and went with a more established size. For the record, the contender would be KY cygni with an UPPER limit of 2850 solar Radii.