All my life Pluto was a planet. Now it's not? Why? Did it shrink or something? Did the definition change? Did it get kicked out of the club 'cause it's so far away?
The definition of "planet" set in 2006 by the International Astronomical Union (IAU) states that in the Solar System a planet is a celestial body that:
Pluto only has 1 and 2 going for it making it a dwarf planet. Pluto shares its orbital neighbourhood with Kuiper belt objects. Pluto is also only 1/5th the mass of our moon.
don't quote me this but I think it was 'cause Pluto has an orbit thing around the sun so it was called a planet but its still too small so it's technically a dwarf planet, or something like that. it's been over a year since I did that stuff so I'm not entirely sure.
It hasn't been a planet for a while. I believe its because of its size. Its rather small to be considered a planet so that's why they took it out. On a more serious perspective, how the hell do people decide whats a planet and what isn't?
They say they declassified it as a planet because it was small like an asteroid or something like that. Also there are more obiting small plantoids like it out there.
yeah I always thought pluto was a planet just because it small I think it deserves to be a planet the poor thing but yeah I think its still a planet
http://www.funadvice.com/q/whyisplutonolonger_considered Same question...lots of answers :)
Are you serious? Since when is pluto not a planet? And if its not a planet what is it? Xo:)
Apparently its just too small to be a planet. Its more of a floating rock orbiting the sun.
Really ? God ye learn something new everyday !! lmao... XO:)
Its not a planet anymore because its too small.