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The Sun |
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| The Sun is
the most important object in our Solar System. It is the Sun's gravity that holds our
Solar System together.
The
Sun is very hot (more than 15,000,000º C at it's core) and bright and it gives the Solar System it's heat and light. Without the
Sun the Earth would be a cold dark rock drifting aimlessly through space and the Solar
System would not exist. |
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- Although the Sun looks huge and
bright to us, when compared to many of the other stars we see in the night sky it is quite
small. It only looks brighter and larger than other stars because it is much, much closer.
To astronomers, the Sun is classified as a yellow dwarf.
- The Sun is about 4.6 billion
years old - and it still gets spots! These spots are simply cooler areas on the Sun's
surface. The average Sun spot lasts about a week before it disappears.
- Every so often, burning gas from the
surface of the Sun shoots thousands of miles into space. These are called 'Solar Flares'.
- The Sun's gravity is so strong that
if a man could go to the surface of the Sun he would weigh about 28 tonnes and be crushed
under his own weight.
- The Sun is large enough to
fit over a million planets the size of Earth inside it.
- Many ancient peoples
worshipped the Sun as a God, and believed that a solar eclipse meant that
the God was angry with them!
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The Sun as viewed from
planet Earth, during a total eclipse on 21st June 2001, and photographed by
us. The sun has not yet been
completely covered by the moon, a small portion can still be seen shining down a valley on
the moon - this effect is called the 'diamond ring'. |
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