How big is it?

Radii are abstract until you stand them next to something familiar. Pick a world and see its true size beside Earth, Neptune, and Jupiter.

Disks are scaled by measured radius only — color and texture are illustrative, not real appearances, and a radius alone doesn't reveal whether a world is rocky or gaseous (mass and density do more of that work). Reference radii: Earth = 6,371 km, Neptune ≈ 3.88×, Jupiter ≈ 11.2× Earth. Radii from the NASA Exoplanet Archive.