planets ii temperature radio observations measure intrinsic radiation of planet in far infrared...
TRANSCRIPT
Planets II
Temperature
Radio Observations Measure intrinsic radiation of
planet in far infrared
Planetary Observations
Temperature Variations Annual
Inclination of the pole Eccentricity of the orbit
Planetary Observations
Inclination and Eccentricity
i e Mercury 0° 0.206 Venus 177.4 0.007 Earth 23.45 0.017 Mars 23.98 0.093 Jupiter 3.08 0.048 Saturn 26.73 0.054 Uranus 97.92 0.047 Neptune 29.6 0.009 Pluto 118 0.249
Temperature Variations
Diurnal Rotation Rate
Earth and Moon ComparisonEarth - 24 hours period
T = 20 - 25 degrees
Moon - 28 day period
T = 450 degrees
Planetary Observations
Temperature Variations
Diurnal Rotation Rate Atmosphere
cloud cover
Greenhouse Effect
Planetary Observations
Greenhouse Effect
Surface
95% CO2 atmosphere
Sun
Visible Light
IR radiated by surface
Temperature Variations
Diurnal Rotation Rate Atmosphere
cloud cover
Greenhouse Effect
Planetary Observations
Oceans
Albedo
Magnetic field requirements Fluid interior Rapid Rotation
Planetary Observations
The Earth’s Magnetic Field
Outer Core
Inner Core
Mantle
Earth’s Magnetic Field
Aurorae
Normal Magnetic Fields
Unusual Magnetic Fields
Interior heating mechanisms Original heat of formation Radioactive decays Tidal heating
Planetary Observations
The Galilean Satellites
Io EuropaCallistoGanymede
Atmospheres
Existence
Twilight Extension
“Horns” on the crescent phase
Composition
UV Spectroscopy
Planetary Observations
Crescent Venus
Inferior Conjunction of Venus
Planetary Spectra
Planetary Atmospheres
H2
Jupiter
Saturn
Uranus
Neptune
CO2
Mars
Venus
N2
Earth
Titan
None
Mercury
Pluto
End of Section