Is it really true that pluto is not a planet????

Question

I heard from a news that pluto now is not included in the 9 planets in the milkyway galaxy makin' it only 8???????????

Answer 1

The IAU members gathered at the 2006 General Assembly agreed that a "planet" is defined as a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.

This means that the Solar System consists of eight "planets" Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. A new distinct class of objects called "dwarf planets" was also decided. It was agreed that "planets" and "dwarf planets" are two distinct classes of objects. The first members of the "dwarf planet" category are Ceres, Pluto and 2003 UB313 (temporary name). More "dwarf planets" are expected to be announced by the IAU in the coming months and years.

Aloha

Answer 2

a planet's definition includes that fact that a body must be much larger than any other object in the area. Pluto is in an area where there are many other bodies the same size or close to Pluto's size. Therefore Pluto can not be considered a planet. We have 8 planets in our solar system.

Answer 3

Let me assure you there are more than 9 planets in the Milky Way Galaxy. We've already discovered hundreds of extra-solar planets (planets orbiting around other stars) in our galaxy. And we can't see that far, our galaxy is huge. There could be thousands, maybe millions of planets in our galaxy. And don't even get me started on the Andromeda Galaxy.

Anyway, to answer your question, "declassifying" Pluto is a tool for astrophysicists. With the great views of distant space that the Hubble Space Telescope gives us, we can see many objects in the Kuiper Belt, a huge area of space beyond Pluto of rocks and ice orbiting around the Sun just like all the inner and outer planets do. With maybe hundreds of Pluto-sized objects in the Kuiper Belt, Pluto seems to belong to that zone. If Pluto gets to be a planet, then where do you draw the line? There's lots of "Plutos" out there. This is what we're learning. Cutting edge of science and cosmology. Exciting, no?

Answer 4

In our solar system Pluto by definition is no longer considered a planet, but we can't change your mind so if you think Pluto is still a planet then so be it. Pluto has no atmosphere, nor does it have sufficient gravity to be considered a planet. That is the facts of the case

Answer 5

Pluto now is in a new class called dwarf planets. There is just a huge number of those bodies in the Kuiper belt beyond Neptune it was either Pluto is reclassified or the Solar System would have needed with unrealistic number of planets.

Answer 6

Yes, indeed. Pluto is not a planet, it's now a Dwarf (what's the difference bewtween a DRAFW planet and a MIDGET planet?)

Sigmund Freud is a witch doctor.

Tom Cruise is no longer a super star.

Paris Hilton is now a singing sensation.

Believe it or else!

Answer 7

Yes it's true. A group of astronomers had recently decided that Pluto is too small to be considered a planet. Weep.

Answer 8

Yes, Pluto does not meet the defenition of a planet. So, now there are 8 planets and 3 minor planets.
Science is an ever changing thing. It's kind of cool if you think about it!

Answer 9

Me too and my opinion pluto was the coolest planet and that sad that they said that pluto is not a planet ( I still think that pluto is still a planet just like that other)

Answer 10

Yes, true.
Apparently the Astronomers Association has discussed and voted that Pluto to be dropped from the milkyway. as it is considered to be a 'dwarf planet' something about it cannot fulfil its orbit around the sun . ..

Maybe in the future it will no longer be aligned with the 8 planets.