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  2. 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).

  3. 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.

  4. solarsystemwiki.org › neptuneThe planet Neptune - Rotation, revolution, distance ...

    Neptune’s magnetic field rotates once in about 16 hours. This is the length of the planet’s “day.” The rate of rotation of the visible features in Neptune’s atmosphere varies greatly depending on the features’ latitudes. A dim and distant world. Neptune’s diameter is about four times greater than Earth’s.

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  6. www.youtube.com › watchHow fast does Neptune rotate in KM? - YouTube

    Join us on an astronomical journey as we explore the incredible speed of Neptune's rotation! Discover the mind-blowing facts and figures behind this gas giant's impressive spin, including...

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

    Mar 11, 2024 · Find out the bulk parameters, orbital parameters, observational parameters, and magnetosphere model of Neptune, the eighth planet from the Sun. Learn how fast Neptune rotates on its axis and how it compares to Earth and other planets.

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

    Sep 15, 2024 · Because of a flattening of the poles caused by the planet’s relatively fast rotation, Neptune’s polar diameter is 848 km (527 miles) less than its diameter at the equator.

  9. earthsky.org › space › clocking-neptunes-mysterious-spinClocking Neptune’s mysterious spin - EarthSky

    Jul 3, 2011 · A study by Erich Karkoschka reveals that a day on Neptune lasts 15 hours, 57 minutes and 59 seconds, based on the observation of two features in its atmosphere. The study improves the accuracy of determining the rotational period of any gas planet in 350 years.