The Telescope (CCU)
Unit 3: Telescopes (weeks 6-8)
Major theme: Astronomy is an observational, not an experimental science.
- Outline the main functions of a telescope (light-gathering power, resolution, and magnifying power) and relate each to a telescope’s design.
- Compare and contrast reflection and refracting telescopes; include a sketch of the optical layout of each in your comparison.
- Compare a radio telescope to an optical telescope in terms of functions, design, and use.
- Describe what is meant by the term invisible astronomy.
- Contrast an infrared telescope to an optical telescope in terms of functions, design, and use.
- Discuss at least two important advantages a space telescope in earth orbit has over a ground-based telescope.
Physics of optics/light
- Electromagnetic Spectrum
Optical telescope design
- Refracting telescopes
- Reflecting telescopes: Primary Focus, Newtonian, & Cassegrain
Properties, Function, and Limitations of Telescope
- Light-gathering power
- Resolving fine detail
- Chromatic & Spherical Aberration
Invisible Astronomy (the dawn of Multi-wavelength Astronomy)
- Atmospheric distortion and light pollution
- Radio astronomy
- Infrared telescopes
- X-Ray space-based observatories
Read Zeilik: Chapter 6
Online Astronomy: http://astronomyonline.org