- GoldenHas donated $ to the upkeep of GPL
Pretty sure Uranus and Neptune aren’t visible to the naked eye. That’s why Uranus is the first planet to be “discovered”. Everything out to Saturn was visible to the naked eye and known for millennia.
Edit: just checked. At opposition, with the perfect viewing conditions and extremely good eyesight, Uranus can be seen un-aided. That is not, however, considered to be visible to the naked eye.
I’m not sure how a planet that is visible to the naked eye can be considered as not being visible to the naked eye.
Because it’s a fraction of humans that have vision good enough, and it has to be under completely clear skies with no light polution.
We’ve already had issues with clavicles here. Won’t don’t need it to stretch to Uranus