NATS 1745 Chapter Notes - Chapter 5: Semi-Major And Semi-Minor Axes, Ellipse, Astronomical Unit
17 Jan 2014
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Nats1745 6. 0 history of astronomychapter 5 exam review. 1. to complete the mapping of the heavens from a single location over several years: no he did not complete it, kepler did. 2: witnessed an eclipse, noticed ptlomeic and copernicus predictions where not accurate, wanted to created an accurate map of the heavens. 3. supernova remained fixed relative to other stars: meant it happened in the orb of the stars, celestial objects are eternal but here is a new event. 4: parallax is the perceived shift of an object relative to it background due to the motion of the observer, because the angular shift is so small, it can not be observed with the naked eye. 5: because he calculated that the closest star was 7000au, which he thought was a waste of space so the earth had to be fixed. 6: an astronomical unit is the mean distance between the.
