Eris vs Pluto

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Eris vs Pluto

Post by Lazarus on 8th November 2010, 6:16 pm

Apparently Eris may well be smaller than Pluto. Hmmmm.

(Incidentally Eris is located in the Scattered Disc, not the Kuiper Belt, so Pluto has never actually lost the status of largest Kuiper Belt object)
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Re: Eris vs Pluto

Post by Lazarus on 23rd November 2010, 6:04 pm

Mike Brown's take on just how large Pluto is.

So here are my best estimates of sizes. Pluto: 2330 +/- 50 km; Eris 2330 +/- 30 km.

Shockingly, I didnít contrive to make those numbers turn out to be exactly the same (in fact I examined the Pluto data last night, wrote the value down, and completely forgot it before writing the section on Eris. I had to scroll back up the page to write the size of Pluto, and, I admit, I was a bit stunned). Even if Pluto or Eris had been 10 or 20 km bigger or smaller, it is clear that the only safe statement to make at this point is this: within the uncertainties, we cannot distinguish which of the dwarf planets is the largest.
Heh heh heh.
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