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Dwarf Planet Pluto

A dwarf planet that was the 9th planet from the Sun in our solar system until 2006 when it was determined it did not satisfy the requirements of being a planet.

2,286 Questions

Reason why the Pluto not belong into Solar System?

Pluto is still in our solar system, it is just not considered a planet anymore. Scientists looked more closely and decided that Pluto is not a planet based on four main reasons:

1. Pluto's tiny, tiny size

2. Pluto's orbit is not even close to being elliptical (a normal planet orbit)

3. Pluto's moon is about half of the planet's size and they both revolve around each other; moons are not supposed to be even close to 1/2 the size of the planet

4. Pluto is just outside a major icy comet belt in which those comets look quite similar to Pluto.

Pluto is still somewhat considered a planet, it is just not considered one of the major planets anymore (Earth, Mars, Jupiter, Venus, etc.). It has been "demoted" to a dwarf planet.

Was there another planet discovered after Pluto?

More objects, but none designated as a planet. With improvements in Earth-based telescopes, and the launch of the Hubble Telescope, scientists are discovering more objects past the orbit of Neptune. These include other dwarf planets, and in fact they contributed directly to Pluto's reclassification as a dwarf. (see link to dwarf planets answer)

How old would you be on Pluto if you were 2 Pluto years old?

Depending on how you look at it. Saturn takes 29.5 years to revolve around the sun. So if you ten here, it would be reletive to being 3.5 months on saturn.

You would be the same age no matter what planet you are on. Moving location does not change your age except in the conventional sense of the duration of time it would take to get to your destination.

What is Pluto's physical description?

one furface feature i know is..................

most surface features unveiled by hubble are likely produced by the complex distrubution of frosts that migrate across plutos surface with it's orbital seasonal cycles.

Does Saturn have any air?

Yes Saturn has air but it is not breathable air. So if you go to Saturn and yo are not wearing proper air-gear then you will die because of the air. No it is not cautionous air but you will die.

How far is the planet Pluto away from the sun in miles?

Pluto is, on average 3,607,000,000 miles from earth, which is 3699955887 miles from the sun. These are averages, not exact numbers as the planets shift in their orbits, especially Pluto's.

What is the magnitude of Pluto?

At its brightest its apparent magnitude is 13.65.

If Pluto were somehow stopped short in its orbit it would fall into the sun rather than around it About how fast would it be moving when it hit the sun?

This question is best solved using the law of conservation of energy. The orbital potential energy equation is best derived through the definition of potential energy as negative work. Work equals the integral of force with respect to x. If you integrate GMm/r2 dr from infinity to the orbital radius, you will find that orbital potential energy is -GMm/R. If we plug in the universal gravitational constant for G- 6.6742*10-11 m3/(kg*s2), the Mass of the Sun for M- 1.9891*1030 kg, the mass of Pluto for m- 1.305*1022 kg, and plutos average orbital radius for R- 5.906*1012 m, we will find the potential energy of Pluto to be -2.933*1029 J. This is also the value of kinetic energy, just positive (because KE is a scalar value). If KE=2.933*1029 =mv2/2, v=SQRT(2KE/m) = (m being mass of Pluto) 6,715 m/s or15,002 mph.

What did the hydra do?

In Greek mythology, the Hydra was a multi-headed serpent-like monster that terrorized the swamps near the ancient city of Lerna. It was known for its ability to regrow two heads for every one that was cut off, making it a formidable opponent for heroes like Hercules.

What are the stars called brown dwarfs made of?

Brown dwarfs are composed primarily of hydrogen and helium, with small amounts of heavier elements such as oxygen, carbon, and nitrogen. They are not massive enough to sustain nuclear fusion in their cores like regular stars, but they do emit heat and light due to residual energy from their formation.

How long is 1 second on Pluto?

An hour is a period defined for Earth beings.

However, an hour being a part of a rotation of a planet, based on Earths period of rotation, then an hour on Pluto would be:-

R / 24 where R is the rotation period. Pluto =~ 6.4 Earth Days.

So 6.4 / 24

How long would it take to walk to Pluto?

Pluto is in an eccentric orbit which unlike earth this means it is Egg shaped and not going around in a complete circular orbit.

This means that some times depending when you look at Pluto the furthest away Pluto is form the Sun on the longest part of the egg shaped orbit it will be 49 AU form the Sun

An AU = 93,000,000 miles which is the distance from the Earth to the Sun

At the shortest Point it is 29 AU

So the answer to your question is in between 4.4 Billion Kilometers to 7.3 Billion Kilometers Plus or minus the distance that earth could be away from the sun at any one time which is nearly 150 million kilometers away

Or in miles from 2.75 billion miles away to 4.53 billion miles away plus or minus the earths distance from the sun 93,000,000 miles

Pluto has an orbit that is so eccentric that it can fall between Neptune's orbit of the Sun and be closer to the sun about once in several hundred years

Pluto orbit crosses that of which other planets?

Charon was once a candidate for being a solar planet, I believe, but it is now considered a satellite of Pluto.

Pluto has three known moons. The largest, Charon, is proportionally larger, compared to its primary, than any other satellite of a known planet or dwarf planet in the solar system. The other two moons, Nix and Hydra, are much smaller.
-Pluto's Natural Satellites (Wikipedia)
Also, check out 'Timeline of discovery of Solar System planets and their moons' on Wikipedia. (That's the title of their article, by the way.)



Sorry I didn't provide links to the wiki articles. I'm doing this anonymously, and I don't feel like figuring out the site for one answer when I'm on someone else's computer. Just copy and paste the titles of the articles if you want to read them.

Is life on Pluto possible?

Solar energy would be weak, but not impossible. Wind energy would be your best source. Pluto may also contain flammable gasses or oils usable for energy, but until we walk on Pluto, we wont know.

Why did Pluto remain undiscovered for so long?

They were just dragging their feet once the definition of a planet was solidified. A planet is now considered a nonluminous object, larder than an asteroid or comet, that orbits a star. Whether they were waiting on a comparison of Pluto vs. asteroid measurements...I do not know.

Why is Pluto an odd planet?

Because 2 years ago the astronomers found out that Pluto is not a planet. It is too small to be a planet.

Some authorities are still rooting for Pluto! They still consider it is a planet, though very small.

How many earth days does it take for Pluto to orbit the sun?

It Take's Pluto 243 Earth Day's, To Orbit The Sun?

Pluto is farther away from the sun than Earth, therefore, since it has a longer way to go to completely orbit the Sun, there is no way it can take only 243 days

Is Nix the smallest moon?

Pluto's moon Nix is thought to smaller than the other small moon Hydra, but the two are very close in size. There is a large margin of error possible, with the two moons ranging from 50 to 150 km in diameter.

Why is Pluto a sub planet?

it has a moon and only planets have moons

it is definitely not a planet for a couple of reasons.

  1. It's planetry orbit crosses Neptunes orbit which means it does not qualify as a planet.
  2. It's way too small to be a planet, unlike most other planets which are spherical and a lot bigger.

scientists have therefore classified it as an dwarf planet.

How big is plouto?

pluto is not big at all and it is also sometimes smaller than moon but it still is little bit big no wonder it is use to be a planet.

Is Pluto considered a planet by scientist?

No. Pluto was reclassified as a "dwarf planet" because it's a tiny ball of ice and rock significantly smaller than the Moon, gravitationally bound to Neptune, and it really makes no sense to lump it in with bodies like Jupiter and Saturn.

It's really a historical accident that Pluto was ever considered a planet in the first place. People were looking for a planet to explain certain things about Neptune's orbit... it didn't seem to be moving quite right, but a planet outside Neptune's orbit about the mass of Earth would have made the calculations come out right. By sheer luck (good or bad, depending on your opinion), Pluto happened to be about where people were looking for this "Planet X".

The more we found out about Pluto, the more it didn't seem to fit the equations. Measurements of its size and mass kept coming up short, and estimations changed from "about the size of Earth" to "about the size of Mars" to "about the size of Mercury" to "maybe around the size of the Moon" to "dang, this thing is tiny."

Meanwhile, more careful measurements of Neptune's orbit showed that it didn't need any extra mass out there after all, it was orbiting precisely as predicted by theory.

Is Pluto made out of ice?

Pluto does have some evidence of Ice yes but it's mostly rock I'm afraid with 70 percent of the 'dwarf' planet and 30 percent is Water in Ice form so technically yes and no because it's so cold between about -235 and -210 C according to research the Ice remains there, but in the brighter areas of the planet it contains nitrogen in frozen form. If you compare Pluto to Triton that's what Pluto is like. But for further info, follw the hyperlink - http://www.nineplanets.org/pluto.html

How old would you be on Pluto if you were 13?

Like you would be like 2 like if you was 13 on Pluto you would be like 2 WOW yah like the gravity thing like helps so much with the wrinkles like you would not even need botox! and like that would awesome.

How many days to get to Pluto?

It would take several years to reach Pluto by spacecraft due to its distance from Earth, which varies depending on the positions of both planets in their orbits. The fastest spacecraft, New Horizons, took about 9.5 years to reach Pluto after its launch in 2006.