Do you think pluto should be classified as a planet?, and what ydo you think about 2003 UB 313?

Question

It's is a fact that there are things out in space bigger thant pluto, so shoould these things be classified as planets to or should we ust denounce pluto as a planet and move on? what do you think?

Answer 1

When the sun forms there will be a huge disk of mateiral which all planets are made of surronding it. That material will eventuall form the REAL planets.

The remaining material will become either asteroids, comets or become the Oort Cloud. The great planet debate is about Pluto.
Now Pluto orbits in the kuiper belt, which makes it a 'kuiper belt object'. Now pluto might be a planet, but it might be a rather large circular rock which is sopposedly a kuiper belt object.

Outside the kuiper belt is another planet, Redna, which is said to be much bigger than pluto.

PLANET:
A planet is generally considered to be a relatively large mass of accreted matter in orbit around a star. A mass that becomes massive enough to undergo nuclear reactions is considered a star, not a planet. Based on historical consensus, the International Astronomical Union (IAU) lists nine planets in our solar system. However, since the term "planet" has no precise scientific definition, many astronomers contest that figure. Some say it should be lowered to eight by removing Pluto from the list, while others claim it should be raised to ten or even higher depending on how planets are categorized.

Answer 2

Scientists are just loving this. They have to consider not only Pluto and 2003 UB 313, but now they have to think about other stars and the planets around them, too. The possibilities, combinations and variations are endless. That's what makes it so difficult. The scientists currently seem to be leaning towards defining a planet as any object over 2000km in diameter, which would qualify both Pluto and 2003 UB 313 as planets. I'm ok with this. However, what would happen when we discover a little star out there that has only one very tiny "planet" revolving around it, and the "planet" was less than 2000 km in diameter? Like I said, scientists are loving this.

Answer 3

No, it truly is a dwarf planet, which comprise 5 different gadgets in the photo voltaic gadget. Which actually have moons. To be a planet: a million. Orbit round a large call (and by no skill yet another planet). 2. Be in hydrostatic equilibrium (meaning the exterior of the planet is round or egg formed, depending on the rotation of the planet and by no skill as an get at the same time looking like a wide potatoe, it really is defining the minimum mass for a planet from an astronomers sight) 3. Have cleared the orbital community of different gadgets (meaning, have adequate gravity to dominate this area). All 8 planets are each and each ninety% of the mass of their orbital area, Pluto isn't even 15%. Pluto were given degraded, because it truly is area of a wide team of gadgets, referred to as Plutinos, that are orbiting around the solar with type of the same orbit era as Pluto - suggesting that they formed by technique of a collision in early history. Pluto has the first 2 attributes of a planet, yet no longer the third, it really is why it truly is a Dwarf Planet. If Pluto might want to in uncomplicated words have had the first characteristic, it would want to were an asteroid on the prompt - even asteroids may have moons BTW (Ida & Dactyl as an get at the same time).

Answer 4

General question. What makes a planet a planet? Is it the mass? Diameter? Orbit? Distance from the sun?

I would say that the following are minimum characteristics of planets.

1 & 2 below are arbitrary, you may prefer other variables.

1. Minimum Mass. 10^20 Kg. (about 1/100th the mass of Pluto).
2. Minimum Diameter. 1,500 Km (about 900 miles)
3. Orbit. Must be in orbit around a sun, and not a planet (therefore, Luna is not a planet, even though it's larger than Pluto).
4. Distance from sun. Not relevant, as long as it is clearly in orbit around the sun. Therefore, a massive sun may have planets dozen's of light-years away.
5. Is not itself a sun. That would be a binary or higher system.
6. Must not be in interstellar space, not associated with a sun or suns.
7. Not in a field of other bodies with the same approximate orbit. That would leave out anything in the Asteroid Belt and Oort Cloud.


Now, how about "Xena" (aka, 2003 UB313)? To Hades (Greek God of the underworld) with conventions for naming planets. Xena is perfect. And Gabrielle for the moon.

Answer 5

Yes. OK he will always be the black sheep, supposedly being drawn in from outside the solar system. But he's gone and got himself a moon and is keeping a regular orbit round the sun. The little guy seems to be trying so hard it would be cruel to take planet status away from him.
And my kids just love the thought of this cold ice world where the sun looks no more than a bright star. Gives them some idea of how small we really are.

As for Sedna, Nah, that's just a rock :o)

Later:
Blimey you mean they found another one! I thought Sedna was it. Now there's your 2003 ub313 thing. Just look at their orbits. They go right off the page. No way can they be planets until they tidy up their acts a bit.
Looks like they cant decide whether they want to be in or out.

Answer 6

Yes.
While Pluto is a very small planet, smaller then a few known to us moons. It is all on its own orbits, just like any other planet in the Solar system, nothing but the Sun.

I say give this little guy a brake, for now, and call it a planet.

and
If I may add why not welcome to our solar system UB 313 by calling it a planet. Can you imagine the bestseller "They came from UB313"? I say let's name the eleventh planet Morpheus and then write "They came from Morpheus".

What do you think?

Answer 7

Never mind UB 313, what about UB40. They've got to be bigger than either and they're certainly more famous.

Answer 8

And the new planet should be named........Vulcan......... in honor of Mr. Spock's birthplace--all created by Gene Roddenberry, who gave the world the TV and movie(s) hit, "Star Trek".

Live Long And Prosper......