THE
SOLAR SYSTEM consists of a central star (the sun) and the
bodies that orbit it.These bodies include nine planets and
their 61 moons ;asteroids ,comets,and meteoroids.The solar system
also contain interplanetary gas and dust.Most of the planets
fall into two groups ;four small rocky planets near the sun
(Mercury,Venus,Earth,Mars,) and four planets further out , the
gas giants(Jupiter,Saturn,Uranus, and Neptune.)Pluto is the
outermost planet , except when it passes briefly inside
Neptune's orbit.Between the rocky planets and the gas giants is
the asteroid belt , which contains thousands of chunks of
rock orbiting the Sun.Most of the bodies in the Solar System
move around he Sun in elliptical orbits located in a thin
disc around the Sun's equator .All the planets orbit the sun
in the same direction (anticlockwise) when viewed from above)
and all but Venus ,Uranus and Pluto also spin about their
axes in this direction.Moons also spin as they , in turn
orbit their planets.The entire Solar System orbits the centre
of our galaxy , the Milky way.
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