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  2. nssdc.gsfc.nasa.gov › planetary › factsheetNeptune Fact Sheet - NSSDCA

    Mar 11, 2024 · Sidereal orbit period (days) 60,189. 365.256: 164.79: Tropical orbit period (days) 59,799.9: 365.242: 163.73: Perihelion (10 6 km) ... Neptune Mean Orbital Elements ...

  3. en.wikipedia.org › wiki › NeptuneNeptune - Wikipedia

    Neptune's 164-year orbital period means that the planet takes an average of 13 years to move through each constellation of the zodiac. In 2011, it completed its first full orbit of the Sun since being discovered and returned to where it was first spotted northeast of Iota Aquarii .

  4. science.nasa.gov › neptune › neptune-factsNeptune Facts - Science@NASA

    One day on Neptune takes about 16 hours (the time it takes for Neptune to rotate or spin once). And Neptune makes a complete orbit around the Sun (a year in Neptunian time) in about 165 Earth years (60,190 Earth days).

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  6. nineplanets.org › questions › how-long-does-neptuneHow Long Does Neptune Take to Go Around the Sun?

    Sep 27, 2023 · Neptune is the eighth and most distant known major planet from our Sun in the solar system. It is in fact so far away from the Sun that its orbital period takes 60,190 Earth days, or almost 165 Earth years. So essentially a Neptunian year takes 60,190 Earth days. The rotation speed of Neptune is relatively fast, taking just 16 hrs.

  7. www.universetoday.com › 22064The Orbit of Neptune. How Long is a Year on Neptune?

    Apr 18, 2017 · Neptune's orbit lasts 164.8 Earth years (60,182 Earth days), making a year on Neptune almost 165 years long. Learn how Neptune's orbit affects the Kuiper Belt, its satellites and its seasons.

  8. solarsystem.nasa.gov › planets › neptuneIn Depth | Neptune – NASA Solar System Exploration

    One day on Neptune takes about 16 hours (the time it takes for Neptune to rotate or spin once). And Neptune makes a complete orbit around the Sun (a year in Neptunian time) in about 165 Earth years (60,190 Earth days). Sometimes Neptune is even farther from the Sun than dwarf planet Pluto.

  9. www.britannica.com › place › Neptune-planetNeptune - Gas Giant, Moons, Rings | Britannica

    Sep 15, 2024 · Neptune - Gas Giant, Moons, Rings: Having an orbital period of 164.79 years, Neptune has circled the Sun only once since its discovery in September 1846. Consequently, astronomers expect to be making refinements in calculating its orbital size and shape well into the 21st century.