Our Solar System
● Inside
of the Milky Way galaxy
● Consists
of:
○
1 star (the Sun)
○
8 planets
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Moons/satellites
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Small bodies
■
Comets, Asteroids, Meteoroids, Meteors,
and Meteorites
Our Solar System
8 Planets
My Very Early Mother Just Served Us Nachos.
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Mercury
Venus
Earth
Mars
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Jupiter
Saturn
Uranus
Neptune
Inner Planets
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Terrestrial Planets
Small
Rocky
Dense
Mercury, Venus, Earth, Mars
Mercury
Closest planet to the
sun.
● Covered with craters,
no atmosphere.
● Shortest revolution.
● No moons
●
Venus
Earth’s twin?
● Same size, mass, and
density.
● Retrograde rotation
● Thick poisonous
atmosphere, carbon
dioxide & sulfuric acid
from volcanoes
● Hottest planet
● No moons
●
Earth
Only planet with
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Blue because light is
Liquid water
reflected
Life
● 1 moon, Luna
“right amount of energy”
● Only planet not named
after a God.
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Mars
Known as the Red Planet.
● May have once had water.
● Most like Earth, has polar ice caps, seasons, and volcanoes
● Spacecrafts have landed and explored
● 2 moons, Phobos & Deimos
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Asteroid Belt
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Located between the orbits of Mars and
Jupiter
Made up of millions of asteroids (rocks)
Orbits the sun
Theory behind its existence
○
It is the remains of a planet that never formed
Outer Planets
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Gas Giants
Large
Made of Gas
Have rings
Have many moons
Jupiter, Saturn, Uranus, Neptune
Jupiter
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This is the biggest planet
in our solar system.
Has the Great Red Spot,
which is a massive storm.
Has over 63 moons
First of its moons were
discovered by Galileo,
known as the Galilean
moons
●
Io, Europa, Ganymede, &
Callisto
Saturn
Has most distinctive
rings.
nd
● It is the 2 largest of
all of the planets.
● Still forming
● Least dense planet
● Has over 62 moons.
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● Largest moon Titan
Uranus
Uranus tilts on
its side, almost
at 90 degrees.
● 27 moons
● Made mostly of
methane gases
● Retrograde
rotation
●
Neptune
Farthest planet
from the sun
● Has a Great Dark
Spot much like
that of Jupiter's
Great Red Spot.
● 14 moons
● Made of methane
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Size comparison of the planets
Dwarf Planets
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Classified as dwarf planets, because they
are smaller planets.
Include but are not limited to the following:
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Pluto
Ceres
Eris
Pluto
Once was the farthest
planet from the Sun.
● The big dot is Pluto.
● 5 moons
● The small dot is one
of its moon, Charon.
● Smaller than Earth’s
moon.
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