Transcript Planets of Our Solar System

Planets of Our Solar System
My
Mercury
Very
Venus
Educated
Earth
Mother
Mars
Just
Jupiter
Served
Saturn
Us
Uranus
Nine
Neptune
Delicious Pizzas (Dwarf) Pluto
Inner Planets
Mercury, Venus, Earth, Mars
Terrestrial Planets- these planets have rocky
crusts, dense mantle layers, and very
dense cores.
Mercury
Venus
Earth
Mars
Moons of Mars: Phobos and
Deimos
Asteroid- solid, rocklike masses
that orbit the Sun.
Asteroid Belt
Icarus
Ida and Dactyl
Outer Planets
Jupiter, Saturn, Uranus, Neptune
Jovian planet- large planet, gaseous,
have rings, and are primarily
composed of the lighter elements
(hydrogen, helium).
Jupiter
Saturn
Uranus
Neptune
Ice Planets
Dwarf Pluto
http://www.nasa.gov/vision/universe/solarsystem/planetsf-20060824.html
According to NASA
(1) A "planet" is a celestial body that (a) is in orbit around
the Sun, (b) has sufficient mass for its self-gravity to
overcome rigid body forces so that it assumes a
hydrostatic equilibrium (nearly round) shape, and (c) has
cleared the neighborhood around its orbit.
(2) A "dwarf planet" is a celestial body that (a) is in orbit
around the Sun, (b) has sufficient mass for its self-gravity
to overcome rigid body forces so that it assumes a
hydrostatic equilibrium (nearly round) shape, (c) has not
cleared the neighborhood around its orbit, and (d) is not
a satellite.
(3) All other objects except satellites orbiting the Sun
shall be referred to collectively as "Small Solar-System
Bodies".
Kuiper Belt
• Centered on the
plane of the
ecliptic.
• Extends out
about 500 AU
from the Sun.
• Consists of
comets,
asteroids, and
small icy
objects.
Oort Cloud
• Spherical
distribution of
comets and other
objects around
the Sun.
• May account for
much of the mass
of the solar
system.
Comets
• “Dirty snowballs”
• Dust, water, methane, ammonia.
Hale-Bopp (1997)
Meteoroids
Meteor
The streak of light
seen in the sky as a
meteoroid is
vaporized by the
frictional heating as
it falls through the
atmosphere.
(Shooting Star!)
Meteorite
The portion of a
meteoroid that
survives to strike
the ground.
Meteoroid
A chunk of matter
moving through
space.