Astronomy Essay -- essays research papers

Astronomy Astronomy is not just about the whizzs. Astronomy is about the constellations, the nine planets, the sun and the moons. The solar system is really complex and has many extraordinary objects. There atomic number 18 four different types of features Proto mavins, Bright Stars, Red Giants, and White Dwarfs. Protostars are stars that are on the verge of world born. They are glowing clouds of dust and gas. Gravity pulls on every atom moving them towards the center of the cloud of dust, which causes the Protostar to collapse. Over a period of twenty cardinal years the star begins to form and 10 million years after the pocket of gas was formed, a star is born. The second types of stars are called Bright Stars. They are formed when the new star has completed about 35 million years of its life cycle. A stars life cycle is a lot like a humans life cycle, except a stars years are in millions. When a star is about 10 million years old it is in the same stage on average as a regul ar human that is about twenty years old. The birth and death rate of stars is called Stellar Evolution. A Bright Star is made when nuclear fusion doubles the size of the star. The trinity types of stars are called Red Giants. They are made because the outward flow of the stars core energy stops. Gravity then steps in and squeezes the star to make it decrease in size. The core of the stars heat increases and it starts releasing small amounts of energy, the energy holds a large amount of hydrogen gas. The star then begins to grow larger, but it does not get brighter. As a result of the sudden and fast temperature drop, the stars color changes from blue-white to a passing color. closely Red Giant stars have been found in groups called Globular Clusters. Globular Clusters are groups of up to one million stars that move through space. The one-quarter type of stars are called White Dwarfs. When a White Dwarf is made the star begins cooling off. As a result of cooling, the outer gas m old spreads out. The stars temperature drops and makes the gas layer spread out even more. Eventually, the outer layer spreads out so far that the gas layer separates from the star. Then, a Planetary Nebula (cloud of glowing atoms), moves in all directions. The stars core isnt giving out any more energy and is to the point of collapsing slowly. every of the matter that the star had in the beginning is still there, but it ... ...on. Orion was an ancient Greek hunter and warrior. The constellation Orion shows him caring a order of magnitude shield, and a sword dangling from his belt. Orion has more Bright Stars the any other constellations. The two brightest stars in it are Betelgeuse and Rigel. Betelgeuse is Orions shoulder and Rigel is his foot. Cassiopeia is another(prenominal) well-known constellation. Cassiopeia is a group of stars, the brightest which form a large W in the northern sky. (Miller, 10). Cassiopeia is found next to the Big Dipper and Orion. Its shape is an take away M or W, formed with the five bright stars. The mythic Cassiopeia was an Ethiopian Queen. (Miller 10). Constellations are probably the most arouse thing in the solar system. Most people look at them as an exciting look at the mythological part of our solar system, and others think that they are just another interesting part of the night sky. The Universe is something no one can explain. Our Galaxy is one of the countless galaxies dotted throughout the Universe, like islands in a prominent ocean. Many objects in the Solar System have yet to be discovered and may never be, but it will always be there and may never change for generations to come.