Which planet has the longest years?



  1. 0 Votes

    Back in those blissful bygone days when Pluto was considered a planet, it had the longest years. 1 Pluto Year = 247.7 Earth Years.

    With Pluto gone, Neptune now has the longest years. 1 Neptune Year = 164.81 Earth Years. Basically, the further back you go from the sun, the longer the years.

  2. 0 Votes

    Christian is correct. Interestingly, the planet with the shortest year is in the constellation Cancer. It orbits a star named 55 Cancri and has a year that is equivalent to 17 hours and 41 minutes on Earth.

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