Below you will find the solution for: 15 years before its official discovery it was photographed in 1915 by Lowell Observatory which didn't know what it was Jeopardy .
Since you already solved the question 15 years before its official discovery it was photographed in 1915 by Lowell Observatory which didn't know what it was which had the answer PLUTO, you can simply go back at the main post to check the other answers. You can do so by clicking the link here Jeopardy October 22 2021
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