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Sun

􏰂  The centre of the solar system and is made up of extremely hot gases; is the ultimate source of heat and light for the solar system

􏰂  Provides the pulling force that binds the solar system

􏰂  Contains more than 99.8% of the total mass of the Solar System (Jupiter contains most of the rest)

􏰂  The Sun is, at present, about 70% hydrogen and 28% helium by mass everything else (“metals”) amounts to less than 2%. This changes slowly over time as the Sun converts hydrogen to helium in its core.

􏰂  Light travels at the speed of about 300,000 km per second—the light of the sun takes about eight minutes to reach the earth.

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