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| Observing the solar system - http://www.gecdsb.on.ca/d&g/astro/html/Solar_system.html This module includes basic notes for observing the objects of our solar system. |
Solar System Observing
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| Observing the solar system - http://www.gecdsb.on.ca/d&g/astro/html/Solar_system.html This module includes basic notes for observing the objects of our solar system. |