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AhaBulb: Stuff Everyone Should Know · ahabulb.com/aero-neptune-long-year

About how long is one year on Neptune?

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  1. About 84 Earth years
  2. About 165 Earth years
  3. About 12 Earth years

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References

  1. Neptune Facts science.nasa.gov/neptune/neptune-facts Checked 2026-10-12.

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