• Question: how long is are solar system

    Asked by edward321 to Anil, Blanka, Cees, Emma, Mike on 28 Jun 2012.
    • Photo: Blanka Sengerova

      Blanka Sengerova answered on 28 Jun 2012:

      I had to look this up (here: http://heasarc.nasa.gov/docs/cosmic/planets.html) but it appears that the distance between Pluto, the furthest out planet*, is an average of 5,913,520,000 kilometres (3,695,950,000 miles) from the Sun, which is the centre of the solar system. So this can be seen as the radius (half-diameter) of the system.

      * Pluto has recently lost its status as a planet though!

    • Photo: Emma Trantham

      Emma Trantham answered on 29 Jun 2012:

      Great question – I’ve learned something new too 🙂

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