Transcript The Inner and Outer Planets

THE INNER AND OUTER PLANETS
The Inner Planets
 Terrestrial
 High temperatures
 Closer to the Sun
 Closer to each other
Mercury
 Closest to the Sun
 Only 88 days to orbit
 Many craters
 Temperature extremes
 400C during day, -180 at
night
 Basically no
atmosphere
Mercury
 Mercury is not
the hottest
planet even
though it is the
closest to the
Sun
Venus
 Earth’s sister planet
 Morning and evening
star
 Thick atmosphere of
CO2 and Sulfur
 Longer day than year
 Spins opposite than
other planets
 Over 500C all the time
 Hottest planet in solar
system
Venus
 The atmosphere of
Venus contains a high
percentage of carbon
dioxide that holds heat
in the planet's
atmosphere.
 The atmosphere of
Venus is made of thick
clouds of sulfuric acid
and carbon dioxide,
which makes it very
Earth
 Home sweet home
 Only planet with
sustained life
 Hydrosphere (water)
 Atmosphere made up
of N, O, CO2
 Comfy temps
Earth
 Earth has fewer craters
than other terrestrial
planets because of its
atmosphere (upper)
which destroys
meteorites.
Mars
 Frozen polar CO2 caps
 Smaller than Earth
 Slightly longer day and
year
 Very cold
 Largest mountain in
solar system
 Olympus Mons
 Thin atmosphere
Mars
 Mars has
frozen polar
ice caps and is
known as the
most like
Earth.
Asteroid Belt
 Separates the inner
and outer planets
 Possibly an annihilated
planet
 Most asteroids hang
out here
Outer Planets
 Gas giants
 No solid surface, just thick atmosphere
 All very large
 Very far apart from each other
 All have rings
Jupiter
 Could hold 1300 Earths
 Almost big enough to be
a star
 12 EY = 1 Jovian year
 1 Jovian day = 12 EH
 Huge storms
 Great red spot “hurricane”
larger than Earth
 Some moons may have
water
 Jupiter is largest planet
in the solar system.
 Jupiter can fit all of the
other planets inside
this gas giant and there
would still be space left
over.
Saturn
 29 years to orbit
 Large rings made of ice
and dust
 10 hour day
 Possibly still forming
 Tilts itself
Saturn
 Saturn is known for its’
rings and is the least
dense planet. It would
float in a swimming
pool if we had one big
enough to put this
planet into.
Uranus
 Blue in color due to
methane gas
 84 years to orbit
 Rotates sideways
 Very cold
 -250C
Uranus
 Uranus also has
rings, but lies on
its side so the
rings go around
it vertically.
Neptune
 Methane atomosphere
 164 years to orbit
 -250c temps
 30 times farther from
the sun than Earth
Neptune
 Neptune is blue
because it is
mostly made of
a gas called
methane
Pluto
Pluto is not a
planet,
because of its
size and
irregular orbit.