We now have a planet named Sedna
 

We now have a planet named Sedna
Discovered by a woman named Edna
Her collieges exclaimed
We think your insane
and no man in his right mind would wed ya!

(check the news - its true - we have 10 planets now!)

Re: We now have a planet named Sedna
 

A link or a source?

Some people say pluto isn't a planet due to its size (smaller than our moon). So I say we now have 9 planets :D

edited: Here is the news I found

http://www.spitzer.caltech.edu/Media...es/ssc2004-05/

Re: We now have a planet named Sedna
 

http://story.news.yahoo.com/news?tmp...n_sc/ice_world

planetoid? is it politically correct to discriminate against planets based on their size?

compaired to Jupiter, earth is not a planet either, not by a long shot :^()

Re: We now have a planet named Sedna
 

I saw the NY Times story on it this morning. Plenty of good links at Google News... I think that as we further our ability to see into the depths of space, we'll discover smaller and smaller "planets". I wonder whether or not if there will be a distinction made between a rock orbiting the sun and a "planet" in the near future. Heh.

I also wonder how many teachers were teaching the planets today to their elementary school kids today.

"Now kids, how many planets are there? Tommy?"

"Err... Ten!"

"No, that's wrong Tommy. Does anyone else know?"

Re: We now have a planet named Sedna
 

what is the correct answer then?

9.75?!

Re: We now have a planet named Sedna
 

I would say there are 1 and more planets, since the teacher is asking for numbers of planet in the universe not our solar system ;)

Re: We now have a planet named Sedna
 

I'm not too surprised. I read about the possibility of a 10th planet in a magazine last year. Apparently there is a common track of comets and meteors that led to the theory.

Now we know.

Re: We now have a planet named Sedna
 

The correct answer would be 9, or 8, depending on who you're asking.

A lot of people think that Pluto isn't a planet either ;).

Re: We now have a planet named Sedna
 

" Named Sedna, after the Inuit goddess who created the sea creatures of the Arctic, the planetoid is 800 to 1,100 miles in diameter, or about three-quarters the size of Pluto, and probably half rock, half ice."

we are going to find out its like a metor or something that just seems to quicendently become an orbiting rock =P

Re: We now have a planet named Sedna
 

I seem to remember reading once that our moon is so large that technically its not a moon, its a sister planet

which would mean we have 11 planets now!

Teacher: Billy? How many planets are in our solar system?
Billy: That depends
Teacher: on what?
Billy: on who wants to know? An astronomer, a physicist, an astronaut, or a lawyer?

Re: We now have a planet named Sedna
 

Oh boy. :yikes:

Re: We now have a planet named Sedna
 

Here we go again... didn't something like this pop up a few years back?

If you ask me, it's probably one of the larger rocks of the Oort cloud. But it sounds like a pretty place, if it's true that it's been undisturbed for the past 4.5 billion years.

Re: We now have a planet named Sedna
 

they said the temp on Sedna is 4°K on the surface (4° above absolute zero!)

but with the windchill it can get down to -20°K :ahh:

Re: We now have a planet named Sedna
 

wow, imagine if that were actually possible. I mean at 0 K (I thought there was no degree symbol for kelvin) there is theoretically no molecular movement at all so what would happen if an object would reach negative kelvin? Also even if there wer no molecular movement how would the object manage to exist? :ahh:

Re: We now have a planet named Sedna
 

when the windchill is -20K the temp is not really below absolute zero

it only feels that way on exposed skin :ahh: