Comparing Two Planetss

A planet consists of a solid body that revolves around a star and shines by reflected light. The sun is the only star known to have planets, although certain other stars have companions that may be planets. The sun, nine known major planets, in order of increasing distance from the sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. The planets are divided into two groups according to their size and structure.

Indeed, most of the problem is that there is no formal definition of a planet. Furthermore, it is very difficult to invent one that would allow the solar system to contain all nine planets. I suggest that for an object to be classified as a planet, it must embody three characteristics. It must be in orbit around a star (thus removing the larger satellites from contention), it must be too small to generate heat by nuclear

The reading on terrestrial planets from chapter 6 provides readers with a little insight on the similarities and differences between the planets. These planets include Earth, Venus, Mercury, and Mars. Although these planets have very different properties, they are connected due to their history. There are scientific laws that help people understand, compare, and contrast these planets, such as gravity, chemical composition, and temperature.

Each planet has similarities to a very small degree. They all are made up of mixtures of rocks and metallic material. The differences between each

Terrestrial planets are planets composed mostly of silicate rocks, or metals. They are the inner planets closest to the Sun. The Terrestrial planets are Mercury, Venus, Earth and Mars. The Jovian planets are planets that orbit far from the Sun, and they have no solid surface. Unlike Terrestrial planets, Jovian planets are composed of gases, like hydrogen and helium. They are also much larger than Terrestrial planets. The Jovian planets are Jupiter, Saturn, Uranus, and Neptune. Lastly Dwarf planets are celestial bodies that are like planets. They are not classified as a planet because they lack the criteria to be a planet. Unlike other planets, who have a clear path of orbit around the Sun, Dwarf planets do not have a clear path. They deal with

At first glance, it might seem like Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto barely have anything in common, but looking at it closer will help one realize that they have plenty similarities. An example is all of the planets revolves around the Sun. This fact is, of course, obvious, but it surely is one similarity the diverse planets has together. Not only that but the planets also a body that orbits the sun. although Pluto is not as big as the other planets, it was still large enough to have its own gravity, which is what makes it round and somewhat spherical.

Due to some of Pluto’s various characteristics, this icy dwarf planet, and other dwarf planets are not considered regular planets, such as Earth. These reasons also make other dwarf planets, like Eris, Haumea, Ceres, and Makemake, outliers, when compared to the general eight planets. Astronomers predict that there are possibly hundreds of dwarf planets that surpass the Kuiper Belt, just waiting to be discovered. There are three rules, making a planet, a planet. These include, the planet is round, it orbits around the sun, and it has cleared the neighborhood of its orbit. Pluto only follows the first two rules therefore, Pluto is no longer called a planet, just a dwarf planet.

There are many differences between the Terrestrial, Jovian, and Dwarf planets. The Terrestrial planets are the four inner planets that are closer to the sun which are Mercury, Venus, Earth, and Mars. These planets do not have a lot of atmosphere. They are little and dense. The Jovian planets are the opposite. They are big, have thick atmospheres, and are low density. There are three qualifications for something to be a planet. A Dwarf planet meets two of the qualifications. The first is that it orbits the sun. The second is that it a sufficient mass to make it spherical. The third is that it has cleared the area around its orbit. This last qualification is the one that Pluto falls short on, it has not cleared its orbit thus making it a Dwarf

What is a planet? While many people can point to a picture of Jupiter or Saturn and call it a "planet,"Planets change over time and can look different . Astronomers decided to have new definition in 2006 after the discovery of several worlds at the fringes of the solar system a decision that remains controversial. The term planet was from the Greek word for wonder. Ancient cultures adventured the stars. This is now called astronomy .But the study of earth is called geology . It was not until telescopes came out that we started to look at them in detail. There are nine planets all together. Telescopes also revealed the existence of objects not known to the ancients, because they are too far away and small to be spotted with the naked eye.

With The Planets, Op. 32, composed 1914-1916, Gustav Holst incorporates a wide array of cultural and scientific references to create musical characters for each of the planets in our solar system. The scientific connection is immediately clear simply by looking at how Holst chose to order the movements. While he does not specifically place the planets in order of distance from the sun, they still follow a pattern that clearly references their positions in space. Mars, Venus, and Mercury open the suite, being numbers 3, 2, and 1 from the sun (neglecting to count Earth, which does not appear). Following this are Jupiter, Saturn, Uranus, and Neptune, being numbers 4, 5, 6, and 7 in order. While an awareness of their scientific positions is

To answer the question “What is the chemical difference between a star and a planet?” A big difference between stars and planets is mass and size. Stars are massive balls of gas with pressure inside them that causes a nuclear reaction, which makes them bright and hot. A object would have to have 80 times the mass of Jupiter to have the nuclear reaction in its core. Making planet's not big enough to be a star. Although there is a huge difference in size and mass, many stars and planets are similar. Many planets are rocky and metallic like Earth and Mars, but some planets are mostly made up of gas, like a star. Both gas planets and stars are largely made up of hydrogen and helium.

Terrestrial planets are closer to the sun than Jovian and Dwarf planets. Another difference is the surfaces of the planets. Terrestrial and Dwarf planets are rocky and and solid and Jovian planets have a gaseous surface. Comparing sizes, the Jovian planets are the largest, then Terrestrial planets, then Dwarf planets. The atmosphere of terrestrial planets are mostly carbon dioxide, Jovian planets consist of nitrogen, hydrogen, and helium, and Dwarf planets have little to no atmosphere. Dwarf planets are different than Terrestrial and Jovian planets because they lack certain criteria to make them an actual planet, such as needing to orbit a sun and a enough mass to have a some-what spherical shape. The Terrestrial planets are Mercury, Venus,

The term planet is ancient, with ties to history, science, mythology, and religion. Several planets in the Solar System can be seen with the naked eye. These were regarded by many early cultures as divine, or as emissaries of deities. As scientific knowledge advanced, human perception of the planets changed, incorporating a number of disparate objects. In 2006, the International Astronomical Union (IAU) officially adopted a resolution defining planets within the Solar System. This definition is controversial because it excludes many objects of planetary mass based on where or what they orbit. Although eight of the planetary bodies discovered before 1950 remain "planets" under the modern definition, some celestial bodies, such as Ceres, Pallas,

Venus and Mars are two of the four terrestrial planets, which all have a similar structure because of gravity. Gravity causes heavier materials to sink to the middle (the core) while the lighter materials float to the top (the crust). Both Venus and Mars have nitrogen in their atmospheres most likely because of the volcanic activity that occurs or has occurred on these two planets. Mars is smaller than Venus and has a thinner atmosphere while Venus is relatively large, like Earth, and has a thick atmosphere. The clouds in Venus' atmosphere contain a lot of sulfuric acid which is what gives Venus its yellowish color, but due to Venus’ optically thick atmosphere, its surface features are only known through radar mapping. Venus has

The larger planets are toward the outside of the solar system because they have more mass than the other planets. Since they have more mass they have more force, and with more force the planets accelerate and move farther away from the sun. Also, the larger planets are gaseous planets which can only form further away from the sun. These planets can only form away from the sun because the temperature is cold enough for the planets to condense and become real planets. With the temperature being so cold the gaseous planets can grow larger unlike the inner planets. If the outer planets were too close to the sun the gases would expand and there would be no more gaseous planets.