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Tuesday, May 3, 2011

The scale of our solar system

The scale of our solar system - The Planetary Society Blog | The Planetary Society: "Space.com has taken advantage of the infinitely scrollable nature of Web pages to produce a really cool infographic on the scales of orbital distances in the solar system. The only thing I'd add to it is Sedna, whose current position at about 90 AU would reside on the diagram, near Voyager 2's current distance from the Sun. But oddball Sedna has a bizarre orbit that takes it 960 astronomical units away at aphelion; the diagram would have to be 8.5 times longer than it is to encompass Sedna's entire orbit. Even plotting it at its semimajor axis of 520 AU (which is how I think they've handled the distances of other Kuiper belt objects, most of which have noticeably elliptical orbits) would require making the diagram 4.6 times taller than it already is!"

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