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Astronomy 301: First week of notes

by: LovelyStar

Astronomy 301: First week of notes AST 301

Marketplace > University of Texas at Austin > Astronomy > AST 301 > Astronomy 301 First week of notes
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About this Document

These notes cover the information covered in the first week of classes.
Intro to Astronomy
Donald Winget
Class Notes
astronomy, Winget




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This 2 page Class Notes was uploaded by LovelyStar on Monday February 15, 2016. The Class Notes belongs to AST 301 at University of Texas at Austin taught by Donald Winget in Fall 2015. Since its upload, it has received 17 views. For similar materials see Intro to Astronomy in Astronomy at University of Texas at Austin.


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Date Created: 02/15/16
08/27/15▯ ▯ I. Scales of the Universe▯ ▯ - science vs pseudo-science▯ ▯ - how far apart stars are compare to the distance between Earth and Sun▯ ▯ - how far apart galaxies are compare to the sizes of galaxies▯ ▯ - galaxies are likely to collide, stars are not ▯ ▯ - power of 100: from human scales to the large scale structure ▯ 09/03/15▯ ▯ III. Historical Astronomy▯ ▯ - beginning of scientific methods: learn by observing and experimenting ▯ ▯ - Aristotle ▯ ▯ ▯ - Moon is spherical ▯ ▯ ▯ - Sun is further away from Earth than Moon▯ ▯ ▯ - Earth is spherical▯ ▯ - Aristarchus▯ ▯ ▯ - proposed that Earth is moving around Sun▯ ▯ ▯ - Aristotle argued against it due to no observed parallax of stars ▯ ▯ ▯ - Aristotle failed to account for the fact that stars are too far away for parallax to be observed then▯ ▯ - Eratosthenes▯ ▯ ▯ - measured the diameter of the Earth▯ ▯ - Hipparchus▯ ▯ ▯ - set up the magnitude system▯ ▯ ▯ - larger magnitude means dimmer ▯ ▯ ▯ - observed that stars move over a long period of time▯ ▯ - Ptolemy▯ ▯ ▯ - wrong model of the solar system and stars ▯ ▯ - geocentric world view▯


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