AS101 Study Guide - Final Guide: Chromatic Aberration, 30 Foot Fall, Reflecting Telescope

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20 Apr 2013

Document Summary

Cumulative, more emphasis on material covered post-midterm (slightly) Coverage: chapters 1-4, 5. 2, 5. 4, 12-14 (chapter 15: bonus questions) No calculations other than recognizing a number in scientific notation. Different types of light and how they are used in astronomy (radio, infrared, x-ray, etc. ) Continuous vs. line spectra & what they tell us. Difference between 2 types of line spectra (emission and absorption: how they are formed and how they are related to physics of atoms and light. Chapter 4: astronomical telescopes and instruments: extending humanity"s. Built optical telescopes to gather light and focus it into sharp images. Lens bends (refracts) light as it passes through the glass, brings it to a focus to form an image. Has serious disadvantages: suffer from optical distortion that limits usefulness: when light refracted, shorter wavelengths bend more than longer wavelengths (result: colour blur around images, called chromatic aberration)