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Created with Fabric.js 1.4.5 Comets Comets are made up of components such as dust, ice, carbon dioxide, Ammonia and Methane. Ammonia is a compound of Nitrogen and Hydrogen. It's a type of colorless gas found in comets and also around our atmosphere. This gas produced by the decaying process of animal and vegetable matter. Most comets Nuclei is thought to be 10 miles wide at an average. Few comets have clouds of gas, also called "comas" that reach 1 million miles wide. These comets have tails ranging to 100 million miles long. Other regular sized comets tend to be a lot smaller. Another chemical found in Comets is Methane. Composed of 1 carbon atom and 4 Hydrogen. It's regularly found in Comets and is the main component in Natural Gas too. Astronomers believe comets are leftovers from rocks that formed the solar system. Specific researchers of Comets think theybrought water and molecules to Earth in the beginning when our solar system was first started. In order for researchers to support their theory, The Rosetta Mission was launched. This project landed a space probe on a comet in November of 2014 to study it. A picture of this is right-below. Comets orbit the sun, just like the Earth does. Unlike the Earth howeverComets are believed to inhabit an area of the solar system called the Oort Cloud. Supposedly this area is one far beyond Pluto's orbit aroundthe sun. This area also is defined by some as the "outer solar system."Every so often a comet passes through the inner solar system, allowing people on Earth to see a Comet pass by at this time. Orbit of Comets The nucleus of a Comet is solid, consisting mostly of ice and condensed dust coated with Dark Organic Material.This information found is according to NASA. The Nucleus also may contain a small rocky core but thats still being debated. Once a comet approaches the sun, the ice around the core evaporates and becomes gas. Radiation from the sun pushes away the dust particles surrounding the cloud of gas, thus forming a tail of dust.The sun also converts some dust particles into ion, forming a secondtail. The comets tail is shaped by solar winds. Therefore, cometsface away from the sun to maintain their tails shape. With a first glance, comets may seem slightly similar to asteroids. That is without using a telescope, but only looking up at the sky and seeing one pass by. Scientists or Researches would be able to identify a comet from an asteroid much easier that the average on-looker. The difference between the two is with the cloud of gas, or the coma, and the tails the comet has. These 2 characteristics issomething the asteroid does not have. When it comes toseeing comets it can be hard.Judging by the size most can't be seenwithout a telescope. With a telescope, most are visible though. Although, whensome pass by the sun we can see them as they reflect sunlight and possibly glow from the energy absorbed. Therefore making them morevisible for anyone on Earth. Some meteor showers on Earth even come from comets. Meteor showers thatcome from comets are created by the debris trailing behind a comet in its tail. An example of a comet created meteor shower is The Perseid Meteor Shower. This occurs once every year between August 9th and August 13th when Earthpasses through the orbit of The Swift-Tuttle comet. Astronomers and scientists who studycomets scientifically classify comets onthe duration of their orbits around the sun. Comets described as "short periodcomets need about 200 years or less to complete their orbit around the sun. Comet Meteor Showers- Red Comet Physical Characteristics/classification- Blue Seeing Comets From Earth- Teal Astronomers vs Researchers Theories- Green Asteroids vs Comets- Orange By Jane Avery- Period 4 Science
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