Longest Years in the Solar System

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Quiz by squidpsyco
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Last updated: April 11, 2020
First submittedJanuary 11, 2015
Times taken67
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Length in Earth Years
Planet/Moon
561
Eris
305
Makemake
281
Haumea
247
Pluto
164
Neptune
Length in Earth Years
Planet/Moon
84
Uranus
29
Saturn
11
Jupiter
4
Ceres
1
Mars
+1
Level 69
Aug 5, 2017
What about all the other KBOs out there? And why add the qualifier "Planet/moon" if there are no moons? Going back to the KBOs, Sedna easily outstrips everyone with its 13,000 year orbit. Surely that should be of some importance to this quiz?