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Monday, 10 February 2014

ReddyPrasad Reddy's photo.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ReddyPrasad Reddy's photo.
 
 
 
 
 
 
 
 
 
 
DO YOU KNOW THIS:

so many peoples know that earth and mars,jupitar,etc 9 planets revolving around sun.

>but sun revolves around them and also revolving around centre of milky way(galaxy) like earth.
>centre of milky way also a big and oldest star (number of super novas form as a black holes)
>and sun rotates one revolution in 225-250 million terrestrial years according to NASA AND average speed is abt 230 km/sec related to galactic centre.
>>do you know earth is solid with water but SUN IS NOT A SOLID IS GLOBE OF GAS STAT I.E LESS DENSE COMPARE TO EARTH BUT HIGH DIAMETER AND HIGH GRAVITATIONAL FORCE.
>HERE THE STATS OF STAR IS THERE
1)STAR OR YELLOW DWARF:this is general stars like sun and first stage of star. And is globe of gas producing own heat and light by nuclear fusion reactions temperature:2000-4000 deg c.
2)RED GAINT:brightest star.some what cooler than sun.high diameter10-100 times of sun
3)RED DWARF:very cool.very small diameter is 1/10th of sun.life time:100 billion years
4)WHITH DWARF:very small.very hot stage of star.high temperature abt 800 deg c.
5)SUPERNOVA:this is explosive death stage of a star.often the brightness of 100 million suns.
>which suffer runway internal nuclear reactions at the does of their lives,leading to an explosion.
6)NEUTRON STAR:this star are composed mainly of neutrons.
Forcing the protons and electrons produce a neutron star.
>its heavy dense(3 times of sun)
>small diameter 20 km
> gravity is very high.
7)BLACK HOLES:this is last stage of star.
>at this stage noting can escape from this not even light.
>it can often suck neighbouring matter into them including stars

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