Sun is an amazing phenomenon of the universe. And this source of light and power has a lot of interesting features.
1. The Sun is just one of about 100 billion stars in our galaxy.
2. One million Earths could fit inside the Sun.
3.The Sun contains 99.86% of the mass in the Solar System.
The mass of the Sun is approximately 330,000 times greater than that of Earth. It is almost three quarters Hydrogen, whilst most of the remaining mass is Helium.
4.Light from the Sun takes eight minutes to reach Earth.
5.The Sun is about 4.5 billion years old. It will probably continue to exist in its present form for about another 5 billion years.
6.The Sun travels at 220 kilometres per second.
The Sun is 24,000-26,000 light years from the galactic centre and it takes the Sun 225-250 million years to complete an orbit of the centre of the Milky Way.
7.The temperature inside the Sun can reach 15 million degrees Celsius.
8.The Sun is an almost perfect sphere.
There is only a 10 kilometre difference in its polar diameter compared to its equatorial diameter. Considering the vast expanse of the Sun, this means it is the closest thing to a perfect sphere that has been observed in nature.
9.It has a diameter of 1,390,000 km.
10.The distance from the Sun to Earth changes throughout the year.
Because the Earth travels on an elliptical orbit around the Sun, the distance between the two bodies varies from 147 to 152 million kilometres. The distance between the Earth and the Sun is called an Astronomical Unit (AU).
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