Contents --- Telescopes
Introduction
Types of telescopes
Definition of telescope and the two types of telescopes.
Refractor
Telescopes.
Advantages and disadvantages.
Advantages
Disadvantages
Reflector
Telescopes.
Advantages
Disadvantages
Radio Telescopes
Review Questions
Powers of a Telecope
Light Gathering Power
Resolving Power
Magnifying Power
Review Questions
Atmospheric Distortion
Seeing
Reddening and Extinction
Atmospheric lines
Review Questions
Buying a Telescope
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