And if so, does the apple deserve a separate line on our list from the roundness and redness?

I first want to review with you briefly what we know about circular orbits, so I wrote on the blackboard everything we know about circular orbits.

In fact, 21st century astronomers would identify it as a planetary nebula, but it's not a planet either, even though it may appear round and planet-like in a small telescope.

I used purple for the triangles and white for the circles. The Opacity is lowered on both symbols.

And we have a very old silver spoon, round in the bowl like a little ladle, and marked with the same castle.