When did pluto become a dwarf planet?

pluto used to be the 9th planet from the sun. Now it is a dwarf planet. when did pluto become a dwarf planet?
samsam
Asked Feb 18, 2010
I still like to call it a planet for two reasons. 1) it's my second favorite planet (except Earth, and after Jupiter), and 2) it pisses people off, :P
so do u think its a good planet.
argun12 Feb 22, 2010
Well, I like it, so in my opinion it is.
Well I bookmarked this a couple of years ago, I can't remember if it has the date or not, but give it a read, it probably contains your answer.
http://www.space.com/scienceastronomy/060824_planet_definition.html
Oni_Kami
Answered Feb 18, 2010
i read the website it was a little good but a little bad to.
argun12 Feb 22, 2010
i think pluto is still a planet cause it didnt go away and it is round like other planets it floats so that means its a planet.duh.
argun12
Answered Feb 22, 2010
i feel like its still a planet.
argun12 Feb 22, 2010
Well the reason they don't call it a planet anymore is because it's just a solid ball of ice. There's no land mass, no life, no nothing, just a solid ball of ice.

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