Portal Forum General General Discussion Totally Random Trivia: 2022 Reply To: Totally Random Trivia: 2022

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Steve MN wrote:


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.