Download Outer Planets

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Exploration of Io wikipedia, lookup

Planet Nine wikipedia, lookup

History of Solar System formation and evolution hypotheses wikipedia, lookup

Late Heavy Bombardment wikipedia, lookup

Saturn wikipedia, lookup

Dwarf planet wikipedia, lookup

Exploration of Jupiter wikipedia, lookup

Formation and evolution of the Solar System wikipedia, lookup

Orrery wikipedia, lookup

Nice model wikipedia, lookup

Planets beyond Neptune wikipedia, lookup

Planets in astrology wikipedia, lookup

Transcript
OUTER
PLANETS
LETS REVIEW
Name
the four inner planets?
What was there surface
consisting of?
What name were the four inner
planets known as? Hint starts
with a T
 Most
of what astronomers know about
outer planets have come from space
probes
 Compared to Earth some planets are huge
 Jupiter is 11 times larger
 If Earth were a Chihuahua Jupiter would
be a Great Dane
four
outer planets
 Jupiter, Saturn, Uranus, &
Neptune
Do not have solid surface
Called Gas Giants
Stronger gravitational force
Partly solid core
JUPITER
Most
massive planet
Thick atmosphere of hydrogen
and helium
Colorful bands
of thick clouds
Great Red Spot:
ongoing storm
JUPITER’S MOONS
4
moons: Io, Europa, Ganymede, Callisto
 Are 4 largest
 Later have discovered many more
 Io
 Covered with volcanoes
 Looks like giant pizza
 Europa
 Icy crust
 Ganymede
 Largest, icy and partly covered with
craters
 Callisto
 Icy surface and every part covered with
craters
FOLDABLE
 5th
planet from the sun
 Largest planet
 Atmosphere is made mostly of
hydrogen, helium, methane, and
ammonia
 Great Red Spot is a ongoing storm
 Has a ring system
 Four large and 24 small moons
 Day=9hours56min
 Year=12 years
SATURN
2nd
largest
Slightly smaller than Jupiter
but with rings has greater
diameter
Thick atmosphere
Contains clouds and storms
Only planet less dense then
water
SATURN’S RINGS AND MOONS
 Rings
made of chunks of ice and rock
 HUNDREDS of rings
 Each travel in their own orbit around
Saturn
 Broad and think like a cd
 Recently rings have been discovered
around other 3 gas giants but not as
spectacular as Saturn's
 Many moons
 Largest called Titan: little light gets
through
FOLDABLE
6th planet from sun
 2nd largest planet
 Thick atmosphere
 At least thirty moons


Largest moon: Titan (larger than Mercury)
Less dense than water
 Has a ring system
 Day= 10 hours 39 min
 Year=29 years

URANUS
4
times the diameter of Earth but much
smaller than Jupiter and Saturn
 Twice as far from sun as Saturn so
much colder
 Looks bluish because of traces of
methane in atmosphere
 First new planet discovered since 1781
 Thought it might be a comet but when
studied had an orbit just beyond
Saturn
 Started major space exploration at the
time
 In
1986 Voyager 2 sent back our only close
up views
 Only a few clouds
 Rotates in 17 hours
 Axis tilted at 90 degrees
 Rotates top to bottom instead of side to
side
 Astronomer think a object hit it and
turned it on its side
 27 moons

5 largest icy, cratered surfaces, lava flows
(comes from inside)
FOLDABLE
7th planet from sun
 Third largest
 Has ring system
 Axis at 90 degrees (rotates top to bottom)
 27 moons
 Atmosphere of hydrogen, helium, methane, and
ammonia
 Methane caused bluish appearance
 Day=17 hours 14 min
 Year=84 years

NEPTUNE
30
times farther from Sun than
Earth
Contains visible clouds
1989 Voyager flew past and
discovered Great Dark
Spot(about size of Earth)
Probably a giant storm
Didn’t last long, 5 years later it
was gone
Other smaller spots seem to
come and go
13
moons
 Largest Triton
Near south pole covered
with cap of ice, dark material
erupts from underneath
Covered with ridges and
crators

FOLDABLE
 8th
planet from Sun
 Great Dark Spot: Storm as large as
Earth
 Has high altitude winds
 Atmosphere made of hydrogen,
helium, methane, and ammonia
 Methane causes blue color
 Has 13 moons (Triton=largest)
 Has a ring system
 Day=16 hours 6 min
 Year=165 years
PLUTO & CHARON
 Solid
surfaces
 Less than 2/3 size of Earth’s moon
 Moon Charon is more than 1/2 size of
Pluto considered double planet
 Revolve once every 248 years
 Astronomers don’t know much about
them
 Pluto discovered in 1930, Charon in
1978
 Is
it really a planet?
 Many astronomers say it is too
small
 Say it is just the largest of
thousands of objects revolving
around the sun beyond Neptune
 If astronomers had found these
other objects before Pluto might
not have called it a planet
FOLDABLE
9th planet from Sun
 Atmosphere is nitrogen, carbon monoxide, and
methane,
 Moon, Charon, half the size of Pluto
 Oval orbit sometimes puts it closer to the sun
than Neptune
 248 days to revole
 Solid Surface
