solar system

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• The solar system is made up of the sun and
everything that orbits around it, including planets,
moons, asteroids, comets and meteoroids.
• It extends from the sun, called Sol by the ancient
Romans, and goes past the four inner planets,
through the Asteroid Belt to the four gas giants
and on to the disk-shaped Kuiper Belt and far
beyond to the teardrop-shaped heliopause.
• Scientists estimate that the edge of the solar
system is about 9 billion miles (15 billion
kilometers) from the sun.

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• The sun is by far the largest object in
our solar system.
• Containing 99.8 percent of the solar
system's mass.
• It sheds most of the heat and light that
makes life possible on Earth and
possibly elsewhere.
• Planets orbit the sun in oval-shaped paths
called ellipses, with the sun slightly off-
center of each ellipse.

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is the closest
to the sun
• Mercury
planet
perhaps
but
, surprisingly,
does not have highest
temperatures.
• It is the second densest
planet of the Solar
System, but also the
smallest planet.
• The structure of
Mercury makes it the
most similar planet to

8. V
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S

9. V
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• Venus is hotter than Mercury despite
being further away from the Sun.
• A day on Venus is longer than a year.
• Its temperature is 462°C.
• Unlike the other planets in our solar
system, Venus spins clockwise on its
axis.
• Venus is the second brightest natural
object in the night sky after the

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H

11. E
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• Earth, our home, is the third planet from
the sun.
• It's the only planet known to have an
atmosphere containing free oxygen,
oceans of water on its surface and, of
course, life.
• Earth has a diameter of roughly 8,000
miles (13,000 kilometers) and is round
because gravity pulls matter into a ball.
• Average distance from the sun is
92,956,050

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13. M
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• Mars is the fourth planet from the Sun and
the second-smallest planet in the Solar
System.
• It’s called the Red Planet because its iron-
rich dust gives it landscape a rusty-red
color.
• Mars’s gravity is 38 percent of Earth’s. So if
you weigh 60 pounds here, you’d weigh
about 23 pounds there.

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• Jupiter is the fifth planet from the Sun
and the largest in the Solar System.
• Jupiter is the fourth brightest object in
the solar system.
• Jupiter has the shortest day of all the
planets. It turns on its axis once every
9 hours and 55 minutes
• Jupiter’s moon Ganymede is the largest
moon in the solar system.

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• Saturn is the sixth planet
• from the Sun and the
• second-largest in the Solar
• System, after Jupiter.
• Saturn is the least dense planet in the Solar
System.
• Saturn has 62 moons.
• The length of the day on saturn was a

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N
U
S

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• Uranus was officially discovered
by Sir William Herschel in 1781.
• Uranus makes one trip around the Sun
every 84 Earth years.
• Uranusisoften referred to asan“icegiant”
planet.
• Uranus hits the coldest temperatures
of any planet With minimum
atmospheric temperature of -224°C.

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E

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• Neptune is the most distant planet from
the Sun.
• Neptune is the smallest gas giant.
• A year on Neptune lasts 165 Earth years.
• Neptuneis namedafter the Romangod of
the sea.
• Neptune has 6 faint rings
• Neptune spins on its axis very rapidly.
• Neptune has 14 moons.