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 Fact day Annoucement

I want to annouce that every sunday of a week will be a fact day in which I will post most fascinating facts related to science and space.

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  Stars in space Galaxy with billions of stars Stars are the hot luminous object with glowing gas in the universe having enough gravity and mass to fuse their hydrogen into helium and this process is called as nuclear fusion. Their temperature veries some stars are not very much hot and some are very much hot. Some stars live for millions of years but some stars live for trillions of years. The color of all stars varies with temperature and here comes a twist in our daily life we think blue is cold and red is hot but it is opposite here a star which is Blue in colour is hottest whereas star which is red in color is coldest.
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  The Life cycle of stars Birth:- The birth of stars take place in beautiful big cloud of gas called as nebula. When significant amount of gas come together due to gravity the core of star is formed and it starts taking up matter around it and a protostar ( baby star ) is formed. As it takes matter it starts becoming bigger with time but there is also a limit to become bigger. When the star come its maximum size of its limit it stops taking matter and it starts using its own fuel ( hydrogen ). Note:- The mid age and death of stars will be published on 7 July 2026 in this blog only.
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Types of stars  Not all stars are same. Each type of star has its own behaviour. There are 7 types of star according to electromagnetic spectrum as all stars has different color in appearance. They are as shown below:- O type :- These type of stars are hottest and blue in color. Their temperature is above 30,000 K. These type of stars use their fuel so quickly that their lifespan is short as millions of years.    B type :- These type of stars are second hottest one and are light blue in color. Ther temperature is from 10,000 to 30,000 K. These type of stars also live for millions of years. A type :- These type of stars are third hottest one and they are white in color. Their temperature is from 7,500 to 10,00 K.These type of stars live for approx 50 to 100 millions of years F type :- These type of stars are golden in color and they are slightly more hot than the our Sun. Their temperature is from 5,000 to 6,000 K. These type of stars live for billions of years. G type :- ...
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