Planets II Temperature  Radio Observations  Measure intrinsic radiation of planet in far infrared Planetary Observations.

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Presentation 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  Mercury0°0.206  Venus  Earth  Mars  Jupiter  Saturn  Uranus  Neptune  Pluto

Temperature Variations Diurnal  Rotation Rate Earth and Moon Comparison Earth - 24 hours period  T = 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% CO 2 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 IoEuropaCallistoGanymede

Atmospheres Existence Twilight Extension “Horns” on the crescent phase Composition UV Spectroscopy Planetary Observations

Crescent Venus

Inferior Conjunction of Venus

Planetary Spectra

Planetary Atmospheres H2H2 Jupiter Saturn Uranus Neptune CO 2 Mars Venus N2N2 Earth Titan None Mercury Pluto

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