?

Log in

No account? Create an account

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

Previous Entry Share Next Entry

Comments:

[User Picture]
From:rikchik
Date:February 3rd, 2010 11:29 pm (UTC)
(Link)
But how about Charon? It's smaller than Pluto but they're both orbiting each other. (It was going to be a planet in the original "12 planet" definition but kind of got dropped once the dwarves were demoted.) Pluto and Charon aren't in any particular order, though, so how about this? "My very earnest mother can jump straight up now; phone/call home, Mother, earnestly!"
(Reply) (Thread)
[User Picture]
From:tracerj
Date:February 3rd, 2010 11:39 pm (UTC)
(Link)
That's a rather handsome set of planetary symbols. Where'd you find them? (Did you make them?)
(Reply) (Parent) (Thread)
[User Picture]
From:rikchik
Date:February 3rd, 2010 11:59 pm (UTC)
(Link)
Thank you! I made some of them - Ceres is official, and this icon uses the astrological Pluto rather than the astronomical (because it's pretty). Charon is from http://suberic.net/~dmm/astro/moons.html and Haumea, Makemake, and Eris are from http://suberic.net/~dmm/astro/tno.html .
(Reply) (Parent) (Thread)
[User Picture]
From:athelind
Date:February 4th, 2010 04:59 am (UTC)
(Link)
You know, by that logic, we need to include Luna, too.
(Reply) (Parent) (Thread)
[User Picture]
From:rikchik
Date:February 4th, 2010 09:06 am (UTC)
(Link)
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).
(Reply) (Parent) (Thread)
[User Picture]
From:athelind
Date:February 4th, 2010 02:17 pm (UTC)
(Link)
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).
(Reply) (Parent) (Thread)
[User Picture]
From:baxil
Date:February 4th, 2010 09:23 pm (UTC)
(Link)
> 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.
(Reply) (Parent) (Thread)
[User Picture]
From:kinkyturtle
Date:February 4th, 2010 06:26 am (UTC)
(Link)
Speaking of which... I'm going to see Jonathan Coulton in concert in Austin on Friday. I hope he sings "I'm Your Moon"!
(Reply) (Parent) (Thread)
[User Picture]
From:rikchik
Date:February 4th, 2010 09:06 am (UTC)
(Link)
I love that song!
(Reply) (Parent) (Thread)