Concept of Nebulae for Astronomy

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The concept of Nebulae has existed within astronomy for many hundred’s of years, dating back to early Greek and Chinese civilizations. Although the Greeks and Chinese did not have a clear idea of what they were observing, it is said that they could view these “clouds” in the sky. As time went by the concept of nebulae from the time of early Greek’s and Chinese up to recent days has changed considerably many times, following up an emergence of theories and inventions. Nonetheless, we can see a kind of dialectical relationship between the inventions and the change in instrumentation (as the changes in the first drive changes within the latter and vice-versa.) The existence of this circularity is often questioned and will be analyzed in depth, along with a historical account of facts, through the next few pages of this paper. The concept of Nebulae also helped with the development of new theories and ideas particularly around the 19th century. We can assume that nebulae were one of the factors that helped in the appearance of modern contemporary astronomy. Galileo’s thoughts addressed the first recent theories about the emergence of Nebulae in his book Assayer. Here he mentions nebulae to be composed of different distant stars but he did not believe it to include clouds and other particles. Eventually at a later point a catalogue of 103 Nebulae was published by Charles Messier. Although Messier’s actual interest were comets he was one of the first to discover Nebulae’s

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