Which category covers the largest size difference (in orders of magnitude)?
1. Objects visible to the naked eye.
2. Objects not visible to the naked eye.

A quick search suggest this hinges on whether one can objectify a neutrino.

Galaxies not visible to the naked eye are such because they are too far away, not because they are too small.

Smart alecs.

Is a galaxy an ‘object’?

It appears that some think this is a quiz. It is not. I don’t know the answer. I suspect it’s pretty close and, neutrinos aside (let’s work with Planck as the lower threshold), might depend on the very smallest object detectable with the naked eye.