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So, is PLUTO a planet or not? Why re-invent the wheel?

2007-04-23 06:45:40 · 8 answers · asked by Custodian 2 in Science & Mathematics Astronomy & Space

8 answers

they are all trying to fool you

Pluto is Mickey Mouse dog :)

2007-04-23 07:15:49 · answer #1 · answered by elcabong 2 · 0 2

Pluto is not a planet and never should have been called one. When it was discovered in 1930 it was estimated to be larger than Mars, but that was really a guess. Recently we were able to measure its size accurately and it turns out to be smaller than the Moon. That fact, plus the discovery of several other objects of about the same size even farther from the Sun prompted astronomers to finally realize the error and they corrected it by demoting Pluto. This was done once before, in the 1800s, when the first few asteroids were originally called planets, but when their true small size was discovered, they were demoted. That is why you never learned about the planet Ceres. Because it was demoted from planet to asteroid in the 1800s, before your text books were written.

I have answered this same question the same way about 10 times now without getting a best answer for it. How about a best this time!

2007-04-23 07:15:48 · answer #2 · answered by campbelp2002 7 · 2 0

When they kick out Pluto, Ceres & Eris then they need to change the definition of planet in dictionary.

American Heritage® Dictionary
A nonluminous celestial body larger than an asteroid or comet, illuminated by light from a star, such as the sun, around which it revolves.

Wikipedia, the free encyclopedia
A planet, as defined by the International Astronomical Union (IAU), is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, not massive enough to cause thermonuclear fusion in its core, and has cleared its neighbouring region of planetesimals.[1][2]


2006 definition of planet

2007-04-23 08:50:54 · answer #3 · answered by bear5521 2 · 1 0

astronomers recently discovered 4 more object about the same size or bigger in orbits much farther than plutos. so if we call pluto a planet, then we have to call all the others planets as well, and then we would have twelve planets. furthermore, astronomers beleive that they are going to fin many more such objects. so if we keep pluto listed as a planet even though its orbit is much different than the rest of the planets, then we are gonna end up having alot of planets. i hope this helps!!!!!!

2007-04-23 07:25:18 · answer #4 · answered by Bones 3 · 1 0

At one time, and for many years, the asteroid Ceres was called a planet.

The new definition of planet leaves Pluto among the transneptunian objects, of which it turns out it is not even the largest anymore.

2007-04-23 07:01:46 · answer #5 · answered by Anonymous · 1 0

in particular cases, confident. In different cases, i discover that somebody has asked a question that would desire to require far greater time and attempt to respond to heavily than a Y!a question advantages. the reality that the questioner has frequently made it crystal sparkling that he won't be swayed with the aid of any argument that contradicts his pronounced or implied opinion on the project makes answering actual pointless. yet in those cases, i don't answer in any respect. i don't think of i've got ever used the "i might clarify that to you yet you're innovations's already made up" line myself.

2016-12-10 09:25:17 · answer #6 · answered by ? 3 · 0 0

Those crazy scientists - always trying to shake things up!

2007-04-23 06:53:03 · answer #7 · answered by carebear 3 · 1 0

pluto is a plant

2007-04-23 06:56:04 · answer #8 · answered by Yuki 2 · 0 2

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