Galaxy Classification

Introduction : background informationGalaxies can be explained as massive systems of stars , dust , gas as well as antithetical types of matter that ar bound together by gravitative forces to form a single physical mass . As Binney and Merrifield (1998 :34 explain , on the basis of extensive psychic imagery surveys that have been carried come to the fore , it is estimated that there are more than 40 billion galaxies in the universe , that are spread out in a complex large systems for example , clusters , super-clusters . in that respect are also boundaries of vast empty spaces referred to as voids . The cheer is just part of extragalactic nebula called the Milky Way . This galaxy is a much planate spiral galaxy that could be comprised by more than four hundred billions stars .

Through the use of telescopes , it is thinkable to view these galaxiesGravitational LensesGravitational lenses can be described as galaxies and clusters of galaxies , which are so huge that they display case bends to the route of light-colored objects towards their directions , thus they distort the forms of background signal galaxies into curves as well as rings . At measure these gravitational lenses can regular lead to photos of galaxies and quasars to be seen in symmetrical outlines around them . merely such cosmetic formation is very rare and just occurs in out of a thousand elliptical galaxiesGalaxy mergesIt has been mention that galaxies comes together to create merges . In such a slickness gal! axies can merge in two different ways . One is through forming stars , and the certify way...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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