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Telescopes and Light
study notes on optics
4
Astronomy
Undergraduate 1
03/18/2008

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Term
Active Optics 
Definition
A technique for improving a telescopic image by altering the telesope's optics to compensates for  variations in air temperature or flexing of the telescope mount.
Term
Adaptive Optics  
Definition

A technique for inproving a telescopic image by altering the telescope's optics in a way that compensates for distortion caused by the Earth's atmosphere

Term
Angular Resolution
Definition
The angular size of the smallest feature that can be distinguished with a telescope.
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