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Internal
structure
-
Jupiter,
Saturn, Uranus, Neptune,
Pluto
-
Internal
structure not precisely known
-
rocky
core almost certain
-
outer
atmosphere known
-
the
rest is calculated
-
how
do we know about the internal structure of the Earth?
-
Seismic
waves (Earthquakes)
-
Magnetic
fields of Uranus and Neptune not centered nicely
-
tilted
at large angles relative to rotation axis
-
moving
electric charges cause magnetic fields
-
charges
exist in:
-
Earth:
liquid iron
-
Jupiter
and Saturn: liquid metallic hydrogen
-
Uranus
and Neptune: ions in water?
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