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Astronomy 1 - Research Paper Example

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The method is simple, keep one finger in front of the open eye and close the other eye. Observe the star with open and then repeat the procedure with second eye. One can…
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Astronomy 1
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The space between the universal objects is not vacant and contains gases that are distributed in the space. Due to this phenomenon, absorption lines are created into the universe that are called intercellular lines of gases. Due to expansion of the universe, the stars and other stellar objects are moving farther and faster as compared to speed of light. Therefore, Hubble law is used to find the distance in the universe (Goldsmith & Owen, 2001). Stars are just like light emitting bodies. Decrease in brightness can be observed if one moves them further away.

Simple mathematical rule is applied for notifying change in obvious brightness of stars as a function of its distance from us. . The mathematical formula is as follow. Luminosity of star is also used to write inverse square law. Luminosity is energy that star emits in each seconds which is measured in watts. It can be described in following manner. If luminosity of star is known then brightness can be measured. Then brightness is used for calculating distance (Goldsmith & Owen, 2001). Geologists have assumed that rocks in earth structure are some 4 billion years old.

The stones came from moon and mars also seem to be having same history. It is assumed that earth and planets formed at the same time when sun was formed. Thus our sun is about 5 billion years old approximately. It is huge ball of gas mostly containing hydrogen which is contained due to gravity (Goldsmith & Owen, 2001). The new energy source of sun was proposed by a British astronomer at the end of world war one. He puts three ideas together. Astronomers knew that presence of hot and dense gases at center of sun are helpful in supporting its weight.

Expanding high pressure hot gases maintain the outer layer of sun. Secondly the research proves that four atoms of hydrogen are equal in weight to one helium atom. The same ratio is composed of subatomic particles. Still the weight of helium is

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