eight planets · size, distance, year and day
Built as a memo rather than a table: the thing worth hanging it up for reads across the room, with the full reference in smaller type below it.
Three sizes in one archive — from a sheet on the fridge to a poster on the wall.
Discs are drawn to scale by diameter. Pluto has been classed as a dwarf planet since 2006, so it’s not listed.
Venus turns on its axis in 243 Earth days but circles the Sun in 225. Its day outlasts its year.
It also spins backwards, so the Sun rises in the west. Only Uranus shares that retrograde motion, and it lies on its side.
The ↺ mark in the table means exactly that: retrograde rotation.
Why the numbers can be trusted. Every countable number here is computed from data rather than typed in, and the sheet must pass 3 independent checks before it is allowed to build — how many items there are, the order they come in, and the claim in the highlighted box itself. If one fails, there is no file.
