This series of webpages is part of a course, called Astronomy 161: The Solar System, offered by the Department of Physics and Astronomy at the University of Tennessee. This unit covers the size and scale of Solar System objects, such as the masses, densities, and relative radii of the sun and planets; revolution and rotation of the planets; conservation of angular momentum; theories on the origin of the solar system, such as the nebular hypothesis, which includes collapsing clouds of gas and dust, a spinning nebula that flattens, and condensation of the protosun and protoplanets; star formation, planets of other stars, and the creation of new solar systems; and comparison of binary star systems and planetary systems. An astrophysical calculator is provided in the size and scale subsection.
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