The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields. It has a diameter of about 1,392,000 km, about 109 times that of Earth, and its mass (about 2×1030 kilograms, 330,000 times that of Earth) accounts for about 99.86% of the total mass of the Solar System.
The Sun is a typical G-type main-sequence star. But is it typical or normal?
Currently, the Sun is the only star known to habour life. Despite our efforts, we have yet to find an exact twin of our sun and our solar system.
There could be something very special and makes the sun the "odd" star in the universe.
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