Composed primarily of ice and rock, Pluto took part of our Solar System for 76 years. It was discovered on January 23, by Clyde Tombaugh. Tombaugh was an American astronomer who worked at the Lowell Obeservatory. Tombaugh had been working on a project when he came across a moving object in photographs he had taken of the celestial sky.
Solar System Ever since grade school you were taught that our solar system has nine planets. Sadly that is no longer the case; in astronomers have decided that Pluto no longer qualifies as a planet. A dwarf planet is not even considered to be a planet, and there are projected to be hundreds of them in our galaxy.
Pluto is being demoted to what amounts as a third class citizen in our galaxy.
Pluto: The Ninth Planet essaysTowards the end of our solar system lies the smallest of all the nine planets, Pluto. In , Percival Lowell, an American astronomer, found the force of gravity of some unknown planet to be affecting the orbits of Neptune and Uranus. In , he predicted the location. For decades Pluto was considered to be the ninth planet of the solar system. It wasn't until that people started to speculate that Pluto wasn't in fact a "planet".4/4(1). Free Essay: In the outer limits of our solar system there is a planet unlike any other, Pluto. Pluto was discovered in February of by an American.
According to the new definition for a planet, a full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit.
Every years Pluto crosses inside of the orbit of Neptune, so technically speaking, it does not clear its neighborhood.
But that also means that Neptune does not clear its own neighborhood. Otherwise Pluto fits the definition for a planet; it is from a faulty definition that Pluto is no longer allowed to be a planet.
Dwarf Stars are still stars, and Dwarf Galaxies are still galaxies. One of the biggest problems with how Pluto got demoted from being a planet was the voting process. Although there are over 10, Astronomers in the International Astronomical Union, only of them voted and approved this definition.
Therefore, there was NOT a majority consensus of what a planet is. Hundreds of Astronomers around the world have signed petitions to ignore the new definition and still refer to Pluto as the ninth planet in our Solar System. They believe the definition of a planet is sloppy and needs to be drastically revised.
The demotion of Pluto is also going to hurt its research funding. Discovered inPluto orbits the Sun, has three moons, has an atmosphere, has weather, and even polar caps. It is not that much different than any of the other planets. It has been known as a planet for more than 75 years, and to change its status with a poor definition and process is bad science.
Pluto needs to be considered a planet again, who knows what they might try to change in our solar system next.Planets in the Solar System Essay.
Words 3 Pages. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto used to be the ninth planet but IAU changed the definition of planet and Pluto did not meet the standards so it is now a Dwarf planet.
Planets in the Solar System Essay. Words 3 Pages. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto used to be the ninth planet but IAU changed the definition of planet and Pluto did not meet the standards so it is now a Dwarf planet. Neptune is the eighth planet from the Sun and is the most distant planet from the Sun. This gas giantplanet may have formed much closer to the Sun in early solar system history before migrating to . This causes Pluto to sometimes go closer to the Sun than Neptune. Since it was discovered in , Pluto was thought to be the Solar System's ninth planet. In the late s, the minor planet Chiron was found and people learned that Pluto had a small size. .
Free Essay: In the outer limits of our solar system there is a planet unlike any other, Pluto. Pluto was discovered in February of by an American. Neptune is the eighth and farthest planet from the Sun in the Solar System.
Named for the Roman god of the sea, it is the fourth-largest planet by diameter and the third largest by mass. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth but not as dense. On average, Neptune orbits the Sun at a distance of Pluto, A Planet Essays: Over , Pluto, A Planet Essays, Pluto, A Planet Term Papers, Pluto, A Planet Research Paper, Book Reports.
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The orbit is so eccentric that at certain points along its path Pluto is closer to the sun than is Neptune. No possibility of collision exists, however, because Pluto?¦s. Pluto is usually farther from the Sun than any of the nine planets; however, due to the eccentricity of its orbit, it is closer than Neptune for 20 years out of its year orbit.
Pluto crossed Neptune's orbit January 21, , made its closest approach September 5, , and will remain within the orbit of Neptune until February 11,