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The Constellations of Stars Without the help of a telescope we can see about 6000 stars in the sky at night. Half of these can be seen in the northern sky and the other half in the southern sky. As we look at the stars we realise that we can form groups or shapes among them. These groups and shapes were mapped and classified by astronomers and given different names....
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September 26, 2017 evirtualguru_ajaygourParagraph Writing1 Comment
Galaxies in the Universe It is estimated that the universe and its galaxies were formed some 15,000 million years ago due to a massive explosion. This theory of the astronomers is known as the ‘Big Bang Theory’. Since the ‘Big Bang’ the galaxies have been moving away from each other and the universe has been constantly expanding. Galaxies are large groups of stars, dust and gases, old stars are constantly...
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September 26, 2017 evirtualguru_ajaygourParagraph WritingNo Comment
The Milky Way The Milky Way is one of the many galaxies in the universe and the Sun is one of the 100 billion stars it has in it. The Milky way is so big in size that it takes light about 100 thousand years to travel from end to end. It tends to look patchy because in some parts of the galaxy the stars are closer to each other, as...
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September 26, 2017 evirtualguru_ajaygourParagraph Writing2 Comments
The Gaseous Planets It is believed that all the planets were formed as a result of the combination of gases and clouds of dust about 4500 million years ago. Hydrogen is believed to have been found in the largest quantities in all planets, including the Sun. As time passed most of the smaller planets lost their reserves of hydrogen, largely because of their weak gravitational force. On the other...
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September 26, 2017 evirtualguru_ajaygourParagraph WritingNo Comment
The Sun As we look up in the night sky we see stars from end to end. Our Sun is no more than a star, It is our proximity to the Sun which makes it so bright and large in size. The Sun was born about 5000 million years ago as a result of the contraction of clouds of hydrogen, helium and dust into a ball under gravitational pressure. Very soon...
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September 26, 2017 evirtualguru_ajaygourParagraph WritingNo Comment
Jupiter the Largest Planet Jupiter is largely made of liquids, gases and swirling clouds of hydrogen and helium. These liquids and gases become denser and denser as we move towards the planet’s centre. Jupiter is the largest planet in the Solar system with a diameter of 1,42,884 kilometres, which is 318 times that of Earth. Besides this it is also the fastest spinning planet, it takes only 9 hours and 50...
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September 26, 2017 evirtualguru_ajaygourParagraph WritingNo Comment
Pluto-The dwarf planet Till around 1929 the outermost planet known to man was Neptune. In 1915 the American astronomer, Percival Lowell discovered that the movement of Uranus and Neptune was affected by something which existed beyond Neptune. This opinion led to the search for a new planet and it was in February 1930 that an astronomer named Tombaugh discovered Pluto the ninth planet. Pluto has a diameter of about 2445 kilometres...
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September 26, 2017 evirtualguru_ajaygourParagraph WritingNo Comment
Uranus- The Seventh Planet Uranus was discovered by William Herschel in the year 1781. Herschel built the largest telescope of that age to do so. Located at about 2890 million kilometres from the Sun, Uranus is the seventh planet in our Solar system. Third largest in size, Uranus has a diameter of 51,118 kilometres and it is about 15 times the size of Earth but has a surface gravity of only...
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September 26, 2017 evirtualguru_ajaygourParagraph WritingNo Comment
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