Transcript The Solar System Around Us - Grosse Pointe Public School System

Classroom
Room 274
Cross roads
County/ City
Grosse Pointe Farms
State
MI
Country
USA
Planet: Earth
Solar system
Milky way Galaxy
located on: Orion Spur
Galaxy cluster
Super cluster
Virgo galaxy cluster
The Solar System
Nebula Theory
(our solar system)
• The solar system started from the
spinning and condensing of a cloud of
dust and gas. The greatest matter
formed the sun with the remaining
becoming the planets.
Inner Planets
• Terrestrial planets
– Mercury
– Venus
– Earth
– Mars
• Formed as small rocky material nearest to the
protostar(our sun) cooled.
Jovian (outer planets)
• Jupiter
• Saturn
• Uranus
• Neptune
Planets orbit in ellipses
Perihelion- when the
planet is closest to the
sun
Aphelion- when the
planets are farthest
away
Sun
•Features:
•Core –nuclear
fusion occurs
•Radiative zoneenergy moves
outward in waves
•Convection zonewarmed gases rise and
cool gases sink
•Photosphere- the
visible surface of light
CHROMOSPHERE
• Above the
photosphere
• Reddish in color
• contains spikes
of gas called
spicules that
rise through it
• Sunspots: are temporary
phenomena on the photosphere
of the Sun that appear visibly as
dark spots compared to
surrounding regions.
– They are caused by intense
magnetic activity, which inhibits
convection
CORONA
• Outermost atmosphere of the sun
• Seen only during a total solar eclipse
• Very hot but thin
• Sunspots: are temporary
phenomena on the photosphere
of the Sun that appear visibly as
dark spots compared to
surrounding regions.
– They are caused by intense
magnetic activity, which inhibits
convection
Solar Winds
• Corona prevents
most particles from
exiting the sun.
However, some
Ions/ particles
escape as Solar
Winds.
• Causes Auroras
(northern lights).
SOLAR FLARES- Large
Eruptions of Gas
Increases Auroras
Prominences: large, bright,
gaseous feature extending
outward from the Sun's
surface, often in a loop shape.
A coronal mass ejection
(CME): is a massive burst of
solar wind and magnetic fields
rising above the solar corona
or being released into space.
* Can only see corona
during an eclipse
• An aurora is a
natural light
display in the sky
– Auroras are
caused by
charged particles,
mainly electrons
and protons
Increased solar flares activity
can interrupt communication
systems on earth
SOLAR FLARES
CORONA
SUN SPOTS
PROMINENCE
SPICULES
CONVECTION ZONE
CHROMOSPHERE
PHOTOSPHERE
RADIATIVE ZONE
CORE
Asteroids
•Asteroids are
small metallic
rocks that orbit
the sun between
Mars and Jupiter
METEORS
• A meteoroid from
space that burns up
in our atmosphere
Meteorites
•Chunks of
rock that
have hit the
earth’s
surface
COMETS
• DIRTY SNOWBALL
• Composed of dust,
gas, and ice
• Has a tail as it
approaches the sun
The End