Argumentative Essay On Pluto Planets

There are nine planets in the Solar system if you include Pluto and most of them contain many different things then each other. They are all unique in various ways. Although it does not apply to Pluto, the planets are split up into two sides; Jovian and Terrestrial. Pluto isn't Jovian or Terrestrial. It’s density is too small for it to be considered a Terrestrial planet, but it also is made out of rock and ice (Kaitlin). To be a Jovian planet it would have to be made of of gas, so it was classified as not being either. Terrestrial planets include Mercury, Venus, Earth, and Mars and Jovian planets include Jupiter, Saturn, Uranus, and Neptune. Many people don’t know that the planets are split up into two sections. What is the big difference between
Jovian and Terrestrial planets?
The closest group of planets to the sun are called the Terrestrial planets.
Mercury, Venus, Earth, and Mars are examples of the Terrestrial planets. In order to be considered a Terrestrial planet, the planet has to be made out of solids. Most if not all of these planets also have metals and minerals inside of the rocks (Nova). Other than Earth, most of the planets in this group do not have any moons. They are also a lot closer to the sun then Jovian planets are. This makes them a lot warmer than the other plants. Terrestrial planets also happen to be smaller in size and have a higher density. The reason they have a higher density is because Jovian planets are made out of gasses while Terrestrial planets are made out of solids (Arnett). The solids weigh a lot more then the gasses that make up the Jovian planets. Earth is the only planet on the the Terrestrial side to have a gaseous state. Earth has a outer shell of gasses including oxygen, and nitrogen. Other Terrestrial planets like Mercury have no atmosphere gases which causes the temperature to change rapidly (Chris). At one point, it is said that Mercury, Venus, Earth, and Mars had rings around them, but for a long time they have not. Jovian planets tend to have a large amounts of rings around most of their planets. Although many people did not know the planets are split up , they are still familiar with the word extraterrestrial meaning alien. They call an alien extraterrestrial because it is out of earth since
terrestrial means relating to Earth.
The farthest planets away are considered Gaseous or Jovian Planets. This includes Jupiter, Saturn, Uranus, and Neptune. The word Jovian in Roman mythology is translated to Jove which is the God of Jupiter and may be the reason why the Jupiter was grouped and classified as a Jovian planet (Lindemans). The Jovian planets are very different from the Terrestrial ones. Jovian planets are planets made up of gasses like hydrogen and helium. For the most part, they don't have any solid surface which causes them to weigh much less but have a higher density. They are the farthest from the sun which makes them indubitably cold. Since they are so far away from the sun, they also take a lot longer to orbit the sun. Although they have a slow orbit, the spin very fast compared to terrestrial planets. The slowest rotation period for a Jovian planet is eighteen hours long and the fastest rotation for a Terrestrial planet is Earth which is twenty-four hours long (Arnett). The fastest for a terrestrial planet is six hours longer than the slowest of a Jovian planet. The Terrestrial planets have three moons in total and Jupiter alone has fifty. Jupiter is also home to the biggest moon named Ganymede. Saturn has fifty-three moons, which is the most moons out of any other planet. Uranus has twenty-seven moons, and Neptune has thirteen. In total Terrestrial planets have three moons and Jovian planets have 143 not counting the unconfirmed ones (Erickson). Jovian planets also have many rings around most of the planets even though you can't see many of them.
Venus, a terrestrial planet is a lot different than Neptune, a Jovian planet.
Venus is the hottest planet in the solar system and can get up to 863.6 degrees fahrenheit. Meanwhile Neptune gets to -329.8 degrees fahrenheit (Chris). This is because Venus is 2,727,767,000 miles closer. Venus was also discovered about a thousand years before Neptune. Since Venus is so close to the sun, its orbit period is 225 days. Neptune takes 156 years! The two are also made up of very different substances. One is made out of iron core, rocky mantle, and silicate crust and the other is made up of hydrogen, helium, and methane. The reason why Terrestrial planets are made out of rocks and why Jovian planets are made out of gasses is because of the way they were formed. Since the Terrestrial planets are closer to the sun, the gasses that they may have had when they were first formed may have been blown away from solarwinds. Since Jovian planets formed and moved farther away from the sun, they were able to hold the gasses in (Wolf). Although they are in very different place in the solar system, Terrestrial and Jovian planets can have some similarities. They are both spheres. Venus and Neptune have a special thing in common. They both contain violent storms. Due to the extreme pressures on Venus, it has a lot of storms that can get very violent with a lot of lightning. Neptune’s storms have been recorded to travel 600 miles per
second.