Should Quaoar/Sedna be classed as planets?

[AndyMac]

This is an old debate, given the length of time ago that these objects were discovered - but I'm running out of ideas for polls!

By planets, I mean planets (and not 'planetoids').

Feel free to post any viewpoints but of course remember that this is just for fun.

BTW a link to the discovery of Sedna to help refresh memories: http://www.nasa.gov/vision/universe/solarsystem/planet_like_body.html

[AndyMac]

Well I'm a big 'no' fan on this one. Although the sizes have yet to be accurately determined, we have enough data, in my opinion, to say that both objects are too small to be classed as planets.

Planetoids or kuiper belt objects, yes - planets, no.

I think I'm right in saying that there is no actual definition in place by the IAU for determining the minimum size for a planet (though I think that one exists for the maximum size of around 13 Jupiter masses).

Anyway, 'no' from me.

[OXO]

It's a no from me too! unless little green men start coming here to argue with me then i will after change my mind or i could use a lead helmet

James

[AndyMac]

Hmmm.........now that Astroman has signed up, I think I'd better delete this thread - otherwise he'll go ballistic when he sees it! :shock:

[Rob]

No from me also.... oversized astriod in my eye's!

[Astroman]

Ballistic? Me?! Why would you think that? Maybe because of the Pluto thing? If discovered today, Pluto would be classified as a TNO, but it wasn't, it's a planet today so get over it. Sedna and Quaoar are the second and third best examples of TNO's known so far. Asteroids are another animal all together.

Cheers.

[Ant]

What's a TNO? Going to regret asking that I think. (TiNy Object?)

Personally it would really [removed word] me off to have Pluto down graded, and I have to agree with Astroman if it were discovered now it wouldn't be a planet. Plus I met Clide Thombagh (sorry not sure of the spelling) so I can actually say that I've met a planet discoverer.

Sedna and Quaoar should be classed as TNO's as I'm guessing that its something that's "smaller than a planet but bigger than other stuff".

Ant

[OXO]

Trans-Neptunian Object

James

[OXO]

[Ant]

How does one edit ones post so that one doesn't look such a plum?

Ant

[AndyMac]

You don't Ant! You remain looking a plum so the rest of us can have a good

BTW James - on which website did you look up the answer?!

[OXO]

Not blumming yours that's for sure! :twisted:

[AndyMac]

Ah.......so you did look it up?! Tsk! Tsk!

[OXO]

Funny enough i was reading about the subject on a website the other day so yeah i did kinda look it up in a way..

Personally i am quite bad with termanolgy's i think being dyslexic doest help or should that be yelp?

James :oops:

[AndyMac]

i think being dyslexic doest help or should that be yelp?

James :oops:

Ah.........I was forgetting about that. Hope I haven't caused any offense anywhere.

[OXO]

NO not at all Andy lol it amuse's me sometime's anyway 8)

[AndyMac]

Only sometimes? I must be losing my touch!

[OXO]

I did mean my own unwitting dyslexia andy..

[AndyMac]

You like to amuse yourself? :shock: Now that I'm a moderator, we'll have less smutty talk around here!

[OXO]

Yes like when you talk to yourself andy er big dipper whatever your called??......

[spurius]

Trans-Neptunian Object

James

Thats a mouthful, I just call em trannies. Speaking of trannie objects, how far is hale bopp about now in AU? That was a wicked comet and the only one I ever seen. I remember it being about as big as the full moon! (Including its tail)