pluto help?

Question

could someone tell some facts about pluto?, Are there any new plants farther than pluto.

Answer 1

Pluto has a diameter of 1,485 miles and is 3.7 billion miles from the Sun. It takes Pluto 247.9 Years to make one orbit around the Sun as compared to the Earth taking only 365 Days for one orbit. Pluto spins around just like the Earth, but each spinning rotation takes 6.39 Earth days.

Pluto has at least one Moon, and its name is Charon. Charon orbits Pluto every 6.4 Earth days, and is about half the size of Pluto. That makes it the largest Moon relative to its planet in the Solar System. The planet Pluto is very small as compared to the size of the Earth which has a diameter of 2,159 miles.

There is some controversy going on about us calling Pluto a planet. Some feel fairly strongly that Pluto is a very large Comet. Indeed one comet larger than Pluto has been discovered within the Kuiper Belt of comets that stretches out 7.4 Billion Miles from the Sun.

To get even more complex, the Kuiper Belt merges at its extreme fringe with the Oort Cloud of comets. The Oort Cloud contains over a trillion comets and extends 1.6 Light years out from the Sun (almost halfway to the nearest star). Pluto's orbit, however is also at an angle to the Kuiper Belt for some unexplained reason.

At the heart of Pluto is a large rock core. It is surrounded by a mantle of water ice. The ice is not pure water. It also contains methane, nitrogen, and carbon dioxide. Pluto's atmosphere is mostly nitrogen which is periodically replenished when Pluto's orbit takes it close to the Sun and some of the frozen gases melt. Pluto's orbit is the least circular of all the other planets, and it is not in the same plane as the orbits of all of the other planets. Pluto's orbit is tipped up at an angle to the orbits of all the other planets. Pluto's orbit takes it from within 2.77 Billion Miles out to as far as 4.6 Billion Miles from the Sun, so it is a long, long distance from the Earth and the Sun. That makes observation of the planet very hard from Earth.

Regrds,
Zah

Answer 2

The International Astronomical Union decided that Pluto was no longer a planet. The reason is that while Pluto is round, orbits the sun, and has three moons, it has not cleared (via gravity) the neighborhood of its own orbit of debris. Instead, they decided to classify it as a "dwarf planet".

There is a precedent for this. When Ceres was first discovered in 1801, it was considered to be a planet. After astronomers discovered several other objects in the same orbit, it was reclassified as an asteroid. And, in 2006, it was again reclassified as "dwarf planet" just like Pluto.

Neither Ceres nor Pluto have enough mass (gravity) to accrete all the junk from their orbits. They will be "dwarf planets" until we humans decide otherwise.

See the details below.

RESOLUTION 5A
The IAU therefore resolves that "planets" and other bodies in our Solar System, except satellites, be defined into three distinct categories in the following way:

(1) A "planet" [footnote 1] is 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.

(2) A "dwarf planet" is 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 [footnote 2] , (c) has not cleared the neighbourhood around its orbit, and (d) is not a satellite.

(3) All other objects [footnote 3] except satellites orbiting the Sun shall be referred to collectively as "Small Solar-System Bodies".


Footnote 1: The eight "planets" are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Footnote 2: An IAU process will be established to assign borderline objects into either dwarf planet and other categories.

Footnote 3: These currently include most of the Solar System asteroids, most Trans-Neptunian Objects (TNOs), comets, and other small bodies.

RESOLUTION 6A
The IAU further resolves:

Pluto is a "dwarf planet" by the above definition and is recognized as the prototype of a new category of trans-Neptunian objects.

Answer 3

These are hard to count.1-mercury2-Venus 3-earth 4-mars5-meteori6-jupiter7-saturn 8 - uranus9-neptun10-pluto

Answer 4

Pluto is more alive than we thought

Answer 5

look up 2003UB313 (AKA Eris)