Stars in the limelight , Science

Stars in  the Limelight:

Among Galilee's my discoveries with the telescope was his observation that the white nebulous band  In  the sky known as the Milky Way (Akash cranga) was in fact made up of very many stars. Ti  this time, the model of  the universe had consisted merely of  the then known Solar System, with stars being nothing more than point sources of  light. With'the  availability of bigger and better telescopes in the post-Galilean era, the remaining planets of  the Solar System, Uranus, Neptune and Pluto were discovered and the stars came to be examined in greater detail. The first ever study of  the stars was made by the English astronomer William Herschel (1738-1822), who had earlier discovered the planet Uranus. Herschel showed in  1785 that the stars were not the backdrop  to  'the Solar System but were individual objects that extended  to infin~ty..  He  prepared  the  first ever map of  the Milky Way Galaxy and showed that it was,  in fact, a part of a flat disc of  countless  stars.

In his model, the Solar System was situated within the Alky Way Galaxy which constituted  the whole Universe. At  that  time, the telescopes were not very powerful. One could  see  in  the sky,point-like objects, the stars. One could also see white fuzzy clouds called nebulae. When we entered the twentieth century, the model of  the universe was still heliocentric.Our Sun was at the centre of  the Milky Way Galaxy which with its stars and nebulae was the whole of  the universe. However, it did not  take long for the heliocentric model to be abandoned. We will now describe, in brief, the observations that led to the rejection of heliocentric model.  

Posted Date: 9/28/2012 1:12:09 AM | Location : United States







Related Discussions:- Stars in the limelight , Assignment Help, Ask Question on Stars in the limelight , Get Answer, Expert's Help, Stars in the limelight Discussions

Write discussion on Stars in the limelight
Your posts are moderated
Related Questions
The effect of varying the pH of the yeast solution on the functioning of an enzyme catalase

#qpecifically, they want to find two separate locations: one where shallow, large magnitude earthquakes are frequently found, and one where large steep volcanoes that have explosiv

Stimulate the Making of Red Blood Cells - Function of Kidney Stimulate the making of red blood cells. Erythropoietin is a hormone responsible for maintaining the right amount o

What are the Effects of Temperature variations Different minerals present in the rock behave differently to the changing temperatures. The rocks expand on getting heated at day

how are the size and mass different from earth ?

how does pulse rate increase?

Explain the Sensory Decussation - Feature of Medulla Some of the sensory nerves ascending to the cerebrum from spinal cord cross from one side to the other in the medulla. Card

Explain the Chronic Glomerulonephritis The repeated occurrence of acute glomerulonephritis, persisting proteinuria, hypertension and chronic renal failure may damage more and m

please give me some variable for making of hypothesis

wave length of invisible co2 laser