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The Sun is really a star. It is the closest one to earth. It is about 93 million miles away. The Sun is the center of our Solar System. All the planets revolve around it.
Although it has a diameter of about 1.3 million kilometers, the Sun is only a medium star. It is known as a yellow dwarf. The Sun is part of the Milky Way galaxy. Scientists believe it is just a bit older than Earth, about 4.6 billion years.
Q = The Sun is...