Astronomy 100 -- Solar System Basics



ELEMENTS OF THE SOLAR SYSTEM

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EIGHT MAJOR PLANETS

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Related Links of Interest

The Nine Planets.
Welcome to the Planets.
===>>> Your Weight on Other Worlds.
Discussion of mass, weight and gravity.
Solar System Parameters. Solar System Orbital Data.
Solar System Physical Data. Miscellaneous SS Data.



RADIO-ISOTOPIC DATING
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HALF-LIFE of a Radioactive Substance


Fix Figure 7-11


Here are a few important and/or interesting radioactive decays:

     PARENT     DAUGHTER           HALF-LIFE
    Carbon-14     Nitrogen-14     5770 years
    Beryllium-8     2 Helium-4s     3 x 10-16 seconds   
    Iodine-129     Xenon-129     15.7 million years
    Potassium-40        Argon-40     1.28 billion years



A QUICK OVERVIEW OF THE EVOLUTION
OF THE TERRESTRIAL PLANETS



The Astronomical Revolution.

Earth as a Planet

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