THE SUN

The Sun (or Sol), is the star at the centre of our solar system and is responsible for the Earth’s climate and weather. The Sun is an almost perfect sphere with a difference of just 10km in diameter between the poles and the equator. The average radius of the Sun is 695,508 km (109.2 x that of the Earth) of which 20–25% is the core.

Star Profile

Age:       4.6 Billion Years

Type:     Yellow Dwarf (G2V)

Diameter:            1,392,684 km

Equatorial Circumference             4,370,005.6 km

Mass:    1.99 × 10^30 kg (333,060 Earths)

Surface Temperature:   5,500 °C

SIZE OF THE SUN

Facts About The Sun

QUICK SUN FACTS

At its centre the Sun reaches temperatures of 15 million °C.

The Sun is all the colours mixed together, this appears white to our eyes.

The Sun is mostly composed of hydrogen (70%) and Helium (28%).

The Sun is a main-sequence G2V star (or Yellow Dwarf).

The Sun is 4.6 billion years old.

The Sun is 109 times wider than the Earth and 330,000 times as massive.

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