1. The Sun is a star,
and it is located at
the center of our
solar system.
2. It is
approximately 4.6
,billion years old and
is middle-aged in
terms of its life
cycle.
3. The Sun's
diameter is about
109 times that of
Earth.
,4. The Sun's mass is
approximately
333,000 times
greater than Earth's.
5. The Sun's volume
is so large that over
one million Earths
could fit inside it.
, 6. The Sun is
composed mainly of
hydrogen (about
74%) and helium
(about 24%).
7. The Sun's energy
is primarily
generated through
nuclear fusion in its