Reading Memo #2 - This chapter describes in detail, how to...

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This chapter describes in detail, how to observe the sky using not only our eyes but also some advanced tools and methods that allow us to decipher the universe. The chapter also goes into detail concerning the specifics of what our vast universe is entirely made up of (nebulas and stars). The chapter also describes the different types of galaxies that can be seen in the night sky, similar to our very own Milky Way Galaxy. Galaxies are grouped into four different types of classifications: spirals, barred spirals, ellipticals, and irregulars. If a galaxy does not fit into one of the first three classifications, it is placed in the “irregular” category. Planets, defined as spherical bodies that move around the stars in particular paths, are also contained within our universe (and our solar system). Like galaxies, planets for the most part must be observed through a telescope due to their enormous distance from Earth. The rest of the chapter focuses on light waves and their properties. In general,
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This note was uploaded on 12/28/2010 for the course ASTRONOMY 142 taught by Professor Bregman during the Winter '10 term at University of Michigan.

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