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Eight planets + five dwarf planets = PARTYYYY - The online computery journal thingy of a turtle

Feb. 3rd, 2010

08:16 pm - Eight planets + five dwarf planets = PARTYYYY

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From:rikchik
Date:February 4th, 2010 09:06 am (UTC)
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No, it doesn't apply. The center point of the Terra-Luna system is within the planet, and only Luna is tidally locked. The Charon-Pluto barycenter is between the two bodies and they're both tidally locked to each other (so you could build a 12,000 mile long bridge between them if you wanted).
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From:athelind
Date:February 4th, 2010 02:17 pm (UTC)
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I'll buy that; I'd forgotten about the Terra-Luna barycenter (not to be confused with the Terraluna Batty Center).

We could almost consider Charon-Pluto a single body that just happens to be in two chunks (especially astrologically).
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From:baxil
Date:February 4th, 2010 09:23 pm (UTC)
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> they're both tidally locked to each other (so you could build a 12,000 mile long bridge between them if you wanted

This is the sort of thing which causes hypothetical future humans to say "Because we can!" and spend astronomical amounts of money for no good reason. I heartily approve.
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