AST101H1 Chapter Notes - Chapter 2: Northern Hemisphere, Constellation, Murchison Promontory
11 Dec 2013
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As well we can observe patterns of stars. This is a region of the sky with well-defined borders. The iau members who chose the names for the constellations were mainly american or. European, therefore the constellation names in the northern hemisphere: ancient middle. Eastern and the constellation names in the southern hemisphere: 17th century european explorers. Stars in constellation are farther apart than they appear as they are located at various distances from earth. This illusion occurs because we lack depth perception as the stars are so far away. The greeks believed this illusion for reality and imagined all the stars and constellations to lie on the great celestial sphere that surrounded earth. Although it is an illusion it is very useful as its allows us to map the sky as seen from earth. The north celestial pole the point directly over earth"s north pole. The south celestial pole the point directly over earth"s south pole.
