Orbit and Rotation of Neptune

The average distance between the Sun and Neptune is 4.55 billion km, and Neptune completes its orbit every 164.79 years; a year on Neptune is 164.79 Earth years. Despite this fact, it never appears in the same position in our sky because the Earth would have rotated in a different location during its 365.25 day orbit. Neptune’s elliptical orbit is inclined at 1.77 degrees when compared to our own planet. Because of its 0.011 eccentricity, the distance between Neptune and the Sun often varies by around 101 million km between the perihelion and aphelion, which are the nearest and the farthest points of the planet from the Sun along its orbital path, respectively.

Neptune’s axial tilt is 28.32 degrees, which is similar to the Earth’s tilts as well as that of Mars. As a result, Neptune would often experience seasonal changes that are similar to ours. However, the planet’s long orbital pretty much means that the seasons last for about forty Earth years at a time. Its sidereal rotation or day lasts for about 16.11 hours; a day on Neptune is equivalent to 16.11 Earth hours. Because of the fact that its axial tilt is similar to that of the Earth’s the variations in the length of its days don’t get any more extreme. Also, since Neptune is not a solid body, its atmosphere also goes under differential rotation. In fact, it has the most pronounced one in the entire Solar System.

Neptune’s orbit actually has a profound impact on regions that lie directly beyond it. This region is known as the Kuiper belt. This ring of small icy worlds is dominated by Neptune’s gravity in the same way that Jupiter dominates that of the asteroid belt thus shaping its structure.

Windiest Planet in the Solar System – Neptune

  • http://Obama.com/Barrack Obama

    Am I the latest person to comment in 2015 CX

  • Kilowat

    greetings earthlings! Salutations from Neptune.

  • person

    thanks for the help!

  • maya

    i have to do this stupid project for school on one of the planets i was going to do planet x but i could not find any thing on it so i said i would do neptune because
    i thought it was pretty .i forgot that it is due this wedesday

    this is so boring ‘-‘

  • Lisa

    Thank you it helped me on a project! :)

  • http://planetfacts.org jeanellee

    the video was no help but everything else was a help

  • Helena

    umm.. this is awesome and extremely helpful.

  • becci

    this was such a help thank you!

  • the helpful spammer


  • Amanda and Jessica

    this was a fail at life. not helpfull at all!! >:(

  • http://yourmum me

    hahahaha lol thats the mpst dumest thing ever