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How Long is a Year on Pluto?

Pluto takes 248 years to complete each orbit around the Sun. So a year on Pluto lasts 248 years. During this period, Pluto travels around the Sun in a very elliptical orbit. At its closest point, or perihelion, Pluto gets as close as 4.4 billion km from the Sun. At its most distant point, or aphelion, Pluto is 7.4 billion km from the Sun.

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With this widely eccentric orbit, the temperatures on Pluto can very a significant amount. Temperatures can plunge to 33 kelvin, or -240 Celsius.

During this orbit, Pluto can actually get closer to the Sun than Neptune. The last time this happened was on February 11, 1999.


Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay.

Comments on this entry are closed.

  • Taylor October 21, 2008, 10:41 AM

    Dear Pluto Readers,
    How many days are in a year?
    Plz just post it on ur website. Thanx

  • natasha November 26, 2008, 1:29 PM

    i did this study on ur anus

  • natasha November 26, 2008, 1:36 PM

    hi dudes i did this study on uranus and i found out all this cool stuff about it thank you uranus

  • natasha November 26, 2008, 1:37 PM

    hi wats up

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