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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

How is a moon different from a planet or a dwarf planet?

What makes a moon a moon is the fact that it is smaller than the object it is orbiting, and is orbiting the object (the planet) constantly.

The definition of a moon is "a natural satellite revolving around a planet". Since a satellite is an object that orbits a bigger object, usually a planet, and is not a planet due to its small size, it is considered a moon and not another planet.

What is the small dark planet named after the god of the dark underworld?

The small dark planet named after the god of the dark underworld is Pluto. In Roman mythology, Pluto is the god of the underworld, equivalent to the Greek god Hades. Pluto was also the name of the ninth planet in our solar system until it was reclassified as a dwarf planet in 2006.

If Pluto were a planet what would make it so?

A planet has to be a certain size to become a planet. Pluto is under that size so it is not a planet. It is infact a unnaturally big peice of rock.

This is not correct. First, the planetary status of Pluto is still very much a matter of debate. Many astronomers still consider Pluto a planet in spite of the controversial demotion by four percent of the International Astronomical Union. That decision was rejected in a formal petition by hundreds of professional astronomers led by New Horizons Principal Investigator Dr. Alan Stern.

Stern and like-minded scientists favor a broader planet definition in which a planet is defined as any non-self-luminous spheroidal body orbiting a star. If an object is large enough to be pulled into a round shape by its own gravity--a characteristic of planets and not of shapeless asteroids and "big rocks," then it is a planet. When an object is large enough that its shape is determined by gravity rather than by chemical bonds, it is said to be in a state known as hydrostatic equilibrium.

So from this viewpoint, if an object is in hydrostatic equilibrium and orbits the sun (or another star), it is a planet. That most certainly qualifies Pluto.

What are all human explorations from satellite probes on Pluto?

There have been no human explorations to Pluto. The only missions to Pluto have been unmanned spacecraft such as New Horizons, which made a flyby of Pluto in 2015 and provided valuable data and images of the distant dwarf planet.

Pluto how many time needed to rotate on its axis?

Pluto rotates much more slowly than Earth so a day on Pluto is much longer than a day on Earth. A day on Pluto is 6.4 Earth days or 153.3 hours long.

Neptune number of days to orbit around the sun?

Neptune takes about 165 Earth years to orbit around the sun once. This means Neptune's year is equal to approximately 165 Earth years.

How many scientists think Pluto is a dwarf planet?

At their 2006 conference, the IAU re-categorised Pluto as a Dwarf Planet, a category that also included Ceres - the largest member of the Asteroid Belt - and Eris - an object larger than Pluto some distance further out. This year they added Makemake and Haumae, bringing the group up to 5. But the question is; Are these objects actually planets? Well, here's my view on the matter. I present workshops for schools on astronomy and space exploration, and I point out that a few years ago I met the actor Kenny Baker. I tell the pupils that they have probably all seen films that feature Kenny, but they probably haven't seen Kenny himself, because he is usually inside the outfit of R2-D2! Yes, Kenny is one of the main stars of the Star Wars films. Now Kenny is only 3' 8" tall, and so he might be referred to as a dwarf, but what is important is that he is still a human being. He isn't a hippo; he isn't a broccoli; he isn't a hooglyflip. He's a human. So, if a dwarf human is still a human, then surely a dwarf planet is still a planet - it's just a small one. So if we add the 5 dwarf planets to the 8 others, that gives us a total of 13 planets in the solar system. When we had 9, there was a nice mnemonic to remember the sequence, which went; "My Very Educated Mother Just Served Up Nine Planets". For the current list, I have come up with this; "My Very Excellent Mother Creates Jelly Surprise Using Nice Pink Hot Munchy Eggs!" It may not make a lot of sense, but it's a fun way to remember all of our planets.

Why must astronomers say that the sun rotates once evert 27 to 31 days?

Since the sun isn't solid, there's no reason that all of it has to rotate at the same rate,

and in fact it doesn't. Different "latitudes" on the sun rotate at different Why_do_astronomers_say_that_the_sun_rotates_once_every_27_to_31_days_rather_than_give_an_exact_number. One belt

rotates every 27 days, another belt rotates every 31 days, and there are other belts

in between those that rotate at every rate in between 27 and 31 days. So there isn't

a single "exact number" for the sun, as there is for every solid body including the earth.

For any rate you want to name between 27 and 31 days, there's a part of the sun that

rotates exactly once in that period of time

Which planet takes 22 years to orbit the sun?

Neptune takes approximately 165 years to orbit the sun, while the planet Uranus has an orbital period of about 84 years. Jupiter, on the other hand, takes around 12 years to complete one orbit around the sun.

Occasionally Plutos' orbit will remain inside Neptunes' orbit for a period of about how many years?

Pluto's orbit remains inside Neptune's orbit for about 20 years out of its 248-year orbital period. This phenomenon occurs due to the unique orbital characteristics of Pluto and Neptune.

What is the force of gravity at Pluto's surface on an object with a mass of 100 kg?

The force of gravity on an object with a mass of 100 kg at Pluto's surface would be approximately 6.7 N. Gravity on Pluto is only about 0.063 times that of Earth's gravity, so objects weigh much less on Pluto.

Is Pluto covered with frozen gases that make an unusual snow?

Yes, Pluto's thin atmosphere consists of nitrogen, methane, and carbon monoxide gases that can freeze and fall to the surface as snow when temperatures drop low enough. This unusual snowscape gives Pluto its unique and striking features.

What does earth do in a year time?

the earth obrits the sun in about 365 days(one year.

Is there any new planet discovered recently?

Gliese 581g has been discovered recently and scientists and astronomers think that there could be life on it - as it is in the 'Goldilocks zone' - a zone where there could well be water and land on planets in this area.

Why does it take Saturn and Venus different amounts of time to revolve around the sun?

because the amount of time it takes a planet to revolve around the sun is based on its distance from the sun; therefore Saturn and Venus revolve around the sun at a different amount of time because their distance from the sun is different.

Who blew up Pluto?

No one- it's still there. Scientist finally decided it was not a true planet- just as the asteroid Ceres in not a true planet.

Is there a new name for the ninth planet?

1. Mercury

2. Venus

3. Earth

4. Mars

5. Ceres

6. Jupiter

7. Saturn

8. Uranus

9. Neptune

10. Pluto

11. Haumea

12. Makemake

13. Eris

Since the promotion of Ceres from an asteroid to a dwarf planet, the new 9th planet is Neptune.

(bold = dwarf Planet)

but Pluto is not in our solar sysytem

What is the bluest planet?

Neptune is the blue planet in the Solar System. The blue color comes from the methane gas in Neptune's atmosphere.

Why did the ancient Romans consider Pluto a planet but we don't anymore?

Pluto wasn't discovered until 1930; the ancient Romans didn't know of its existence, much less consider it a planet. It was known as a planet because of its size and apparent possession of a natural satellite, amongst other things, but was later downgraded to the status of 'dwarf planet' by newer formal definitions and requirements.

Did they reach absolute zero on Pluto?

No, scientists have not reached absolute zero on Pluto. Because absolute zero is a theoretical minimum temperature of 0 Kelvin (−273.15 degrees Celsius), it is not achievable in practice. Pluto's surface temperature, which is much colder than Earth's, can drop to around -375 degrees Fahrenheit (-225 degrees Celsius).

What is Pluto's classification?

Pluto is classified as a dwarf planet in our solar system. It was reclassified from a planet to a dwarf planet in 2006 by the International Astronomical Union due to its size, orbit, and inability to clear its neighboring region of other debris.

Which planet takes longer to orbit the sun- Mars Or Neptune?

Neptune takes longer to orbit the sun than Mars. Neptune's orbital period is about 165 Earth years, while Mars' orbital period is about 1.88 Earth years.

What does the interior of Charon look like?

Charon is thought to have a rocky core surrounded by a mix of water ice and rock. Its interior may also contain some subsurface oceans, similar to some of Jupiter's moons. Due to its extremely cold surface temperatures, any surface features are likely frozen and preserved.

What is a nickname for Pluto?

Pluto has been nicknamed the Dwarf Planet.