The Memphis Astronomical Society Presents A SHORT COURSE in ASTRONOMY - PowerPoint PPT Presentation

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The Memphis Astronomical Society Presents A SHORT COURSE in ASTRONOMY

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Usually, the star is observed from two points in the Earth's orbit 6 months apart. ... that this was a galaxy like our own (Herschel had called them 'island universes' ... – PowerPoint PPT presentation

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Learn more at: http://www.cbu.edu
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