MadSci Network: Physics
Query:

Subject: what happens to light that enters a telescope lens not parallel to the tube

Date: Sun Oct 1 19:17:54 2000
Posted by No name entered.
Grade level: undergrad School: No school entered.
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Area of science: Physics
ID: 970442274.Ph
Message:

why is it that light entering a refractive telescope is always shown 
entering the lens parallel to the direction at which the telescope is 
pointing? what happens to light entering at other angels? how does that 
light affect the image formed in the eyepiece (i.e distortion)? 


Re: what happens to light that enters a telescope lens not parallel to the tube

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