Transcript Saturn`s Moons

About Saturn’s Moons
• 18 known moons
• 2 more unconfirmed
• The largest moon is Titan
15 of Saturn’s 19 moons
SATURN'S MOONS
SATELLITE
#
DISTANCE (km)
DISCOVERER
DATE
Pan
XVIII
133,583
M. Showalter
1990
Atlas
XV
137,640
R. Terrile
1980
Prometheus
XVI
139,350
S. Collins
1980
Pandora
XVII
141,700
S. Collins
1980
Epimetheus
XI
151,422
R. Walker
1966
Janus
X
151,472
A. Dollfus
1966
Mamas
I
185,520
W. Herschel
1789
Enceladus
II
238,020
W. Herschel
1789
Tethys
III
294,660
G. Cassini
1684
Telesto
XIII
294,660
B. Smith
1980
Calypso
XIV
294,660
B. Smith
1980
Dione
IV
377,400
G. Cassini
1684
Helene
XII
377,400
Laques-Lecacheux
1980
Rhea
V
527,040
G. Cassini
1672
Titan
VI
1,221,850
C. Huygens
1655
Hyperion
VII
1,481,000
W. Bond
1848
Iapetus
VIII
3,561,300
G. Cassini
1671
Phoebe
IX
12,952,000
W. Pickering
1898
Titan (seen from Saturn)
Titan
• 2nd largest moon in solar system
• It’s density is 2 g/cm3
• It’s made up of about half rock and half frozen
water.
• The atmospheres pressure is 1.5 times Earth’s
• 90 to 99% of the gas is Nitrogen. The rest is
methane and very small amounts of hydrogen
cyanide and acetylene.
• -180°:turns methane and other gases to liquid
• Its orange because of that.
Mimas (seen from Saturn)
Mimas
• Nicknamed the “The Death Star”
• Creator is named Herschel
• It’s so big that it’s gravity pulls
material to keep it in a sphere
• Named after a Titan the Hercules
killed
Enceladus (seen from Saturn)
Enceladus
• Brightest object in Solar System
except the Sun.
• Something has erupted to make
the planet so smooth (water,
volcanic, etc…)
• Named after a Titan that was killed by
Athena
Tethys (seen from Saturn)
Tethys
• Giant Ice cube
• Was water at once. It just floated in the air
until it froze
• The moon Thetys was a named after a
Titan sea goddess named Thetys
Rhea (seen from Saturn)
Rhea
• 2nd largest moon of Saturn
• 1/3 of the moon’s mass is rock.
The rock is the core. The other
2/3 of the moon is ice.
• Many creators cover the planet.
Hyperion (seen from Saturn)
Hyperion
• The largest non-ball shaped
object in the solar system
• Being that it isn’t round, scientist
think that it broke off of a larger
moon.
• Named after the son of Earth and
Uranus
Iapetus (seen from Saturn)
Iapetus
• Iapetus’ structure is primarily an
ice ball.
• Unlike most of the moons that
orbit around the equator of
Saturn, Iapetus orbits from top to
bottom.
• Named after the son of Uranus,
that is said to be an ancestor to
humans.
Phoebe (seen from Saturn)
Phoebe
• Phoebe is 4 times farther than Iapetus
to Saturn
• It’s darker tan a lot of Saturn’s moons
• It orbits from top to bottom, and not
around the equator
• Scientists think that Phoebe is
probably a comet or asteroid captured
by Saturn’s Gravity.
Bibliography ~ Solar System
• Origin of the Solar System." Pathlights.
http://evolution-facts.org/. 17 May 2006
<http://www.pathlights.com/ce_encyclopedia/03
-ss2.htm#Basic%20Theory>.
• Spaulding, Nancy E., and Samuel N. Namowitz.
Health Earth Science. Evanston, Illinois:
McDougal Littell, 1999. 7-8.
Bibliography ~ Saturn’s Moons
• "Debate 3: Where Did the Moon Come From?
(Cont.)." Atropos.as.Arizona.Edu. 16 May 2006
<http://atropos.as.arizona.edu/aiz/teaching/a20
4/lecture15.html>.
• Knight, David C. 32 Moons the Natural
Satellites of Our Solar System. New York:
William Morrow and Company, 1974. 57-72.
• "Moons of Saturn." Kids Astronomy. 2006. 19
May 2006
<http://www.kidsastronomy.com/saturn/moons.h
tm>.
Bibliography ~ Saturn’s Moons
• Seal, David. "Solar System Simulator." Nasa.
First Gov. 18 May 2006
<http://space.jpl.nasa.gov/>.
• Spaulding, Nancy E., and Samuel N. Namowitz.
Health Earth Science. Evanston, Illinois:
McDougal Littell, 1999. 422.