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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

Why does Pluto orbit the sun differently?

Like the planets, Pluto's spin axis stays pointed in the same direction as it orbits the Sun. But unlike all planets except Uranus, Pluto is tipped on its side. The planets' axes of rotation stand more or less upright from the plane of their orbits.

What are Pluto's minor and major gases?

Pluto's minor gases include methane, carbon monoxide, and nitrogen. Its major gas is nitrogen, which makes up the majority of its thin atmosphere.

What temperature in degrees Kelvin is 450 nanometer light?

I just learned this while researching grow lamps today.

The conversion from nm to K is:

SInce I'm typing this out on a computer, and don't really know how to turn on my funny math symbols, I'm going to rewrite the equation below, with everything in the same place, only replacing the funny symbols with other variable symbols that I can reproduce on a regular keyboard.

nm = 2,897,768 / K

In this equation:

nm = nanometers, or peak wavelength

K = Peak temperature, in degrees Kelvin.

2,897,768 = the number that needs to be in the equation according to some big science and math conference where a whole lot of nerds got together and decided things like the number that needs to be in that spot in the equation. I tried to understand it, but I don't know anything about math terminology and am not smart enough to learn about it tonight before I respond to this, so I can't explain why that number exists, only that it has to be there to complete the conversion.

This equation is called Wien's law, and it is actually a lot more complex than I'm making it here, but to use it properly would take more understanding than I have. This method is not as accurate as if you were to use the full equation, but it's so close that most people even simplify it further to nm = 3,000,000 / K, and still consider it accurate enough to be a practical reference tool.

I'll show a few examples.

A light bulb rated at 4500K translates to 644nm.

644 (nm) = 2,897,768 / 4500 (K)

A light bulb rated at 6500K translates to 446nm.

446 (nm) = 2,897,768 / 6500 (K)

A light bulb rated at 10.000K translates to 290nm.

290 (nm) = 2,897,768 / 10,000K

The sun puts out peak radiation at 5778K, which is approximately 502nm.

502 (nm) = 2,897,768 / 5778 (K)

Adversely, to convert the opposite direction, swap the position of the nm and the K to look like:

K = 2,897,768 / nm

The response to your question would look like this: K = 2,897,768 / 450

K = 6,439K

You'll notice that when you make it a little easier on yourself and use 3,000,000 instead of 2,897,768, the result is quite noticeably inaccurate, but I suppose if you needed that much accuracy, you'd be in a lab somewhere doing this yourself instead of asking a moron like me to explain it.

Is Pluto in hydrostatic equilibrium?

Yes, Pluto has been determined to be in hydrostatic equilibrium. Planets must orbit the sun (the first criterion for a planet), and must also be in hydrostatic equilibrium (which Pluto is). Pluto fails the third "planetary entrance test" set by the IAU in that it has not cleared its orbit of debris. A link can be found below to check facts and learn more.

Who was Hebe in Greek mythology?

Hebe was the Greek goddess of youth and the cupbearer of the gods. She was the daughter of Zeus and Hera and was known for serving nectar and ambrosia, the food and drink of the gods. Hebe was also seen as a symbol of eternal youth.

What planet takes the longest time to complete one rotation around the sun?

Neptune. It was discovered in 1846, and will not complete its first orbit around the Sun since then until next year, giving it an orbit duration of roughly 165 years.

What is the name of the object in your solar system that is now called a dwarf planet?

It is planet Pluto.

______________________

There are five "dwarf planets" in our solar system, as of August 2010. There are certainly dozens or hundreds more in the distant parts of our solar systems, but our telescopes are not yet good enough to see them.

Pluto was considered a planet until the International Astronomical Union (IAU) reclassified it.

Ceres was an asteroid before the IAU reclassified it.

The Kuiper Belt Objects later named Eris, Haumea and Makemake were all considered to be candidates for being named the "Tenth Planet" until the IAU came out with its definition of "planet". In fact, it was the discovery of the dwarf planet Eris, originally called "Xena", that caused the IAU to finally come up with a formal definition of "planet". All three of these objects are now considered to be "dwarf planets".

There are several other large asteroids that probably deserve "dwarf planet" status as well; Vesta, certainly, and Pallas, and perhaps a few others.

Does a clear solar still work better that a black solar still and why?

A black solar still typically works better than a clear one because black materials absorb more sunlight, leading to greater heating and evaporation within the still. This increased heat helps to speed up the distillation process and improve the overall efficiency of the solar still in producing clean water.

What does the prefix Pluto mean?

The prefix "pluto" means wealth or wealthy

Why are all planets cold?

Not all planets are. Warmth depends entirely on the atmosphere and how close it is to the star. for example, Mercury's daytime and nighttime are about 600 degrees Celsius apart, being about 300 C and -300 C respectively, and Venus has so much carbon dioxide, that the surface is three times as hot as on mercury, which means venus's surface would feel like a mushy candy bar left in the sun. however, Earth, whithout an atmosphere, would have an average temp of -18 degrees AT THE EQUATOR. this is why greenhouse gasses are important, because that is why we have nice temperatures like an average of 54 degrees Fahrenheit planetwide. Past us, most of the rocky planets ( and dwarf planets) have little to no atmospheres, so they have temperatures very close to absoulte zero. outside our solar system, a very common sight is a 'hot Jupiter' meaning a Jovian planet of around Jupiter's mass that orbits it's sun in less than an earth day. being this close has many consequences, one of which being if they are low-density they have a very good chance of being blown apart by solar winds. one such planet has an average daytime temperature of about 2400 degrees C, about 1000 degrees less than it's own parent star.

Which gas giants have more moons than the terrestrial planets?

Jupiter and Saturn have more moons than the terrestrial planets. Jupiter has over 80 moons, while Saturn has over 80 confirmed moons as well. This is far more than the terrestrial planets in our solar system, such as Earth, Mars, Venus, and Mercury, which have few or no natural satellites.

What is the meaning of Reclassified as single-piece shipment?

perhaps it means that it was a 3 piece unit but since it all goes together, because maybe it was all purchased together-- all the pieces should be combined and classified and shipped as a single unit.

this could also be because all the pieces have the same style and color and therfore should be categorized as a combined set unit

-- or corporate Headquarters could have changed their mind and decided that from now on this 3 piece unit will be sold together as one single unit which would classify it as a single piece shipment

Where did goku go when planet namek got destroyed?

after namek blew up goku went to a planet yardrat, to train, this is where he learned the instant transmission

Do you freeze to death if you take of your space helmet on Pluto?

Yes, you would freeze to death if you took off your space helmet on Pluto. With an average surface temperature of -375°F (-225°C), the lack of atmosphere on Pluto means there is no air to conduct heat away from your body, leading to rapid cooling and ultimately death from hypothermia.

Distance of all the planets from the sun in Indian place value system?

mercury 58 million km

venus 108 million km

earth 149.9million km

mars 228 million km

jupiter 778.5million km

saturn 1.43 billion km

uranus 2.88 billion km

neptune 4.5 billion km

Why each planet takes different time to complete one revolution around the sun?

Because each planet is a different distance away from the sun. The farther away from the sun, the longer and wider it's orbital path is, therefore the longer it will take to complete one complete orbit around the sun.

Find some evidence that you think shows that Pluto should or should not be classed as a planet?

One piece of evidence supporting Pluto being considered a planet is its spherical shape and orbit around the Sun. However, its classification as a planet has been debated due to its small size, sharing its orbit with other objects, and not being able to clear its orbit of debris like other planets.

What do astronomers know about other planetary systems?

Only, only from the Light that is being sent from there to here. The only reason that we know so much (temperature, mass, age) is that this Light comes in many types - Gamma, X-Ray, UV, visible, IR, radio, ... each has its own unique story ... to tell.

What planet is farthest to the moon?

First of all why do you say YOUR solar system?? The planet is neptune and it has 13 moons which are:

Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Triton, Nereid, Halimede, Sao, Laomedeia, Psamathe, and Neso.

How long would it take dwarf planet sedena to orbit the sun once?

Sedna takes around 11,400 years to complete one orbit around the Sun due to its highly eccentric orbit, which takes it as far as 936 astronomical units (AU) at its aphelion.

Have humans been to Pluto?

The atmosphere on Pluto is not breathable by humans, and the temperature is about -230 degrees Celsius.

However if an astronaut came with an enclosed habitat that had air and a powerful enough heating system, then it is theoretically possible to live on Pluto.

Why do kids think Pluto isn't a planet anymore?

It is purely a matter of definition. The International Astronomical Union came up with a new definition for a planet and Pluto failed to make the cut.

Before 2006, there had been no actual definition of "planet" that everybody could agree on. But with the development of new and better telescopes, teams of astronomers began finding smaller and more distant objects, and some of the teams announced that they located "the tenth planet". But many of the proposed "tenth planet" candidates were a little unusual.

In 2006, the IAU convention decided that a planet must meet three criteria:

  1. It must orbit the Sun, not another planet.
  2. It must have attained "hydrostatic equilibrium", meaning that its gravity had crushed it into a spherical shape.
  3. It must have cleared the neighborhood of its orbit, so that no other objects were orbiting the Sun nearby.

What are the strange things about the orbit of Pluto?

Pluto has an eccentric and inclined orbit compared to the planets in our solar system. It is also known to cross Neptune's orbit at times, making it a "dwarf planet" rather than a full-fledged planet. Additionally, Pluto's orbit is not perfectly circular like most planets, leading to variations in its distance from the Sun over time.

Why is Pluto considered a binary system?

Pluto is sometimes referred to as a binary system, because the barycentre of Pluto and it's moon Charon, do not lie within either body.

They revolve around a point in space determined by the mass of the planets.

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