moons of gas giants. jupiter io innermost moon innermost moon composed of sulfur composed of sulfur...
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Moons of Gas GiantsMoons of Gas Giants
JupiterJupiter
IoIo
Innermost moonInnermost moon Composed of SulfurComposed of Sulfur Volcanically ActiveVolcanically Active Heat is generated by Heat is generated by
tidal forcestidal forces
EuropaEuropa
Smallest of the Smallest of the Galilean moonsGalilean moons
Few cratersFew craters FaultsFaults Smoother than a Smoother than a
ping-pong ballping-pong ball Underwater oceanUnderwater ocean Life?Life?
GanymedeGanymede
Largest moon in the Largest moon in the solar systemsolar system
Two types of terrainTwo types of terrain Dark terrain is olderDark terrain is older Light terrain is Light terrain is
covered in ridgescovered in ridges Has a magnetic fieldHas a magnetic field
CallistoCallisto
33rdrd largest moon in largest moon in solar systemsolar system
High crater densityHigh crater density Is not effected by tidal Is not effected by tidal
heatingheating Low densityLow density Most likely place to be Most likely place to be
used as a baseused as a base
SaturnSaturn
Mimas:Mimas:
- composed composed mostly of watermostly of water
- not perfectly not perfectly sphericalspherical
- HerschelHerschel
Enceladus:Enceladus:
- 6th largest moon6th largest moon
- ice on surfaceice on surface
- ~ 100% reflectivity~ 100% reflectivity
- active eruptionsactive eruptions
Tethys:Tethys:
- has one of most has one of most visual reflective visual reflective surfacesurface
- Ithaca ChasmaIthaca Chasma
Dione:Dione:
- 3rd densest 3rd densest
- heavily cratered heavily cratered terrainterrain
- ‘ ‘wispy terrain’wispy terrain’
TitanTitan Largest moon of Saturn Largest moon of Saturn
and 2and 2ndnd largest moon in largest moon in the solar system. the solar system.
Discovered by Discovered by Christiaan Huygens Christiaan Huygens
Has an atmosphere Has an atmosphere denser than that of Earth denser than that of Earth
Life? May this help us Life? May this help us discover the learn more discover the learn more about earth’s about earth’s beginnings?beginnings?
Saturn: HyperionSaturn: Hyperion Irregular Irregular
(nonspherical) body(nonspherical) body Discovered by Discovered by
George Phillips Bond, George Phillips Bond, American American
composed primarily of composed primarily of water ice with only a water ice with only a small amount of rocky small amount of rocky materialmaterial
Saturn: IapetusSaturn: Iapetus 33rdrd largest moon of largest moon of
SaturnSaturn Discovered by Discovered by
Cassini in 1671Cassini in 1671 With a density of With a density of
only 1.1, only 1.1, Very Unique moon, Very Unique moon,
jet black on one jet black on one side, and snowy side, and snowy white on the other.white on the other.
UranusUranus
MirandaMiranda
Most Geologically Most Geologically active moon of active moon of UranusUranus
Possible heat source Possible heat source from collisionfrom collision
ArielAriel
Youngest and Youngest and brightest moons of brightest moons of Uranus Uranus
70% is composed of 70% is composed of iceice
Has some minor Has some minor geologic activitygeologic activity
UmbrielUmbriel
Darkest of Uranus’s Darkest of Uranus’s moonsmoons
Most prominent Most prominent feature is a large feature is a large impact craterimpact crater
Black material Black material thought to be dug up thought to be dug up from past impactfrom past impact
TitaniaTitania
Uranus’s largest Uranus’s largest moonmoon
Is thought to be 50% Is thought to be 50% iceice
Has many deep faultsHas many deep faults
OberonOberon
Second largest moon Second largest moon of Uranusof Uranus
Has many faultsHas many faults Core makes of 63% Core makes of 63%
of Oberonof Oberon Has a large crater Has a large crater
countcount
NeptuneNeptune
TritonTriton
Retrograde orbitRetrograde orbit Has a high inclination Has a high inclination
orbitorbit Is the same size as Is the same size as
Earth’s moonEarth’s moon Thought to be a Thought to be a
captured moon, either captured moon, either had a collision or had had a collision or had a twina twin
TritonTriton
Very high AlbedoVery high Albedo Few cratersFew craters Geologically activeGeologically active Cantaloupe terrainCantaloupe terrain